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# Topic: Acute triangle

###### In the News (Sun 26 May 19)

 NumberNut.com: Glossary: A An acute angle is an angle that has a value greater than 0 degrees but less than 90 degrees (90º). An acute triangle is one where all three angles are acute. Acute angles have values less than 90 degrees. www.numbernut.com /glossary   (1144 words)

 InterMath / Dictionary / Description Acute Triangle: A triangle with three acute angles. Note: Remember that an acute angle is an angle that is less than 90 degrees but greater than 0 degrees. If it were to touch one of these lines, the triangle would then be a right triangle. www.intermath-uga.gatech.edu /dictnary/descript.asp?termID=4   (60 words)

 VIAS Encyclopedia: Triangle - General Definitions The sides of the triangle are labeled by lowercase letters, corresponding to the particular opposite vertex. An equilateral triangle is a triangle with all sides being equal. If two sides of a triangle are equal but different to the third side, this triangle is called an isosceles triangle. www.vias.org /encyclopedia/geom_triangle.html   (215 words)

 Figures and polygons The sum of the angles of a triangle is 180 degrees. One of the angles of the triangle measures 90 degrees. A right triangle has the special property that the sum of the squares of the lengths of the legs equals the square of the length of the hypotenuse. www.mathleague.com /help/geometry/polygons.htm   (610 words)

 Cool math .com - Types of Triangles In the equilateral triangle, all the sides are the same length (congruent) and all the angles are the same size (congruent). The isosceles triangle (I can NEVER remember how to spell isosceles) has two sides that are the same length (congruent) and two angles that are the same size (congruent). Acute triangles have NO angles greater than or equal to 90 degrees -- all their angles are less than 90 degrees. www.coolmath.com /reference/triangles-types.html   (249 words)

 ez 4-1 Classifying Triangles (Glencoe Geometry)   (Site not responding. Last check: 2007-10-08) of the triangle are the endpoints of the segments. All triangles have at least two acute angles, but the third angle, which is used to classify the triangle, can be acute, right, or obtuse. triangle is an acute triangle in which all angles are congruent. www.e-zgeometry.com /class/class4/4.1/4.1.htm   (311 words)

 Lecture 1 A triangle is a shape with three angles, three sides and three vertices. A triangle with angles 20-70-90 is similar to a triangle with angles 10-80-90. The longest side of a triangle is smaller than the sum of the two shorter sides. www.lapc.cc.ca.us /faculty/putnamtc/240/Lec1.htm   (1433 words)

 Triangle Partition If it were true that any triangle could be partitioned into acute triangles then any polygon that could be triangulated with non-obtuse triangles could be further partitioned into acute triangles. The remaining triangle, triangle ADC has two angles that are at most 45º and one angle that is at least 90º. If the triangle is "flatter" you will need to make CD shorter so that triangles all sort of "bunch together" near C, and so every triangle is acute. mcraeclan.com /MathHelp/PuzzleTrianglePartitionAnswer.htm   (859 words)

 Lesson Plans Triangles can be classified by side (scalene, isosceles, equilateral) or by angle (acute, right, obtuse). Elicit from the class the side measurements of one triangle that is obtuse and another that is acute. Tell students that in the “Triangles Classification Activity,” they were asked to find the largest side of a right triangle given the two shorter sides. www.thirteen.org /edonline/ntti/resources/lessons/m_picking/b.html   (2263 words)

 web design York from Triangle Multimedia Triangle Multimedia are a York based internet web design and marketing agency. Triangle is pleased to announce the launch of a web site for 'Lion Camp'... Triangle has developed and launched a new site for Charity Accounting... www.trianglemultimedia.com   (97 words)

 The Triangle Figure When she placed an acute scalene triangle next to me on her desk, I remembered times as a student that I was asked to sketch an acute scalene triangle to investigate some triangle property. To make an acute triangle, we can use the fact that the plane is divided into acute and obtuse regions by the sets of points which yield a right triangle. These two reflections may be used to generate a total of four congruent triangles within the same pencil, as long as the third vertex of the initial triangle is not on either of the lines of reflection. www.math.clemson.edu /~rsimms/triangle   (1573 words)

 Altitudes and Orthocenters Should this conjecture prove to be true, one could conclude the orthic triangle(formed by connecting the feet of the altitudes) is the triangle of minimal perimeter that can be inscribed in a given acute triangle. Thus the orthic triangle is the triangle of minimal perimeter that can be inscribed in a given acute triangle. Thus the orthic triangle is the triangle of minimal perimeter that can be inscribed in a given triangle ONLY if that original triangle is acute. jwilson.coe.uga.edu /emt668/EMAT6680.2001/Bruce/write8.htm   (487 words)

 PuzzlePLAYGROUND - Acute Dissection Is it possible to cut an obtuse triangle (a triangle with one obtuse angle) into smaller triangles, all of them acute? An acute triangle is a triangle with three acute angles. The illustration shows how an obtuse triangle can be divided into almost all acute triangles except one - the red one. www.puzzles.com /PuzzlePlayground/AcuteDissection/AcuteDissection.htm   (137 words)

 PinkMonkey.com Geometry Study Guide - 2.3 Types of triangles Acute triangle : A triangle in which all the angles are acute, (i.e. A special case of an acute triangle is when all the three acute angles are equal. Obtuse triangle : A triangle in which one of the angles is obtuse is called as an obtuse triangle. www.pinkmonkey.com /studyguides/subjects/geometry/chap2/g0202301.asp   (274 words)

 Patterns In which type of triangle are there three angles, all of which are less than 90 degrees? In all triangles, the sum of the three angles is 190 degrees A triangle in which all three sides are the same length is www.shsu.edu /~txcae/Powerpoints/prepostest/explortrianglespretest.htm   (114 words)

 Scalene Triangle on Almondnet A scalene triangle is a triangle in which no two sides are the same length. triangle with which you should be familiar: The Equilateral Triangle. Now drag on a scalene triangle and arrange it so that each point is coincident with the centre... www.commercial-mortgage-rates.co.uk /mortgages/scalene_triangle.html   (305 words)

 Ken's POTW 970904   (Site not responding. Last check: 2007-10-08) In an acute triangle, all angles are less than 90 degrees. We infer that at least 7 acute triangles are necessary to divide a triangle with a obtuse or right angle. 2) To divide a square in acute triangles, it is easy to divide the square in 2 right isoceles triangles and we are taken back to the former question. www.ecst.csuchico.edu /~kend/potw/archive/970904sol.html   (312 words)

 Triangles A triangle may be classified by how many of its sides are of equal length. An obtuse triangle may be isosceles or scalene. An acute triangle may be equilateral, isosceles, or scalene. www.factmonster.com /ipka/A0876325.html   (164 words)

 1   (Site not responding. Last check: 2007-10-08) Draw a new triangle ABC, construct three altitudes (to D, E, and F) and label their point of intersection G (this is the orthocenter). On an acute triangle ABC, construct three altitudes (to D, E, and F) and label their point of intersection G. Reflect point G in each of the three sides of triangle ABC, producing points H, I, J. Construct triangle DEF and triangle HIJ Drag vertices of triangle ABC and use measurements to verify or disprove your conjectures. www.stolaf.edu /people/wallace/Courses/UGeom/sketprob.htm   (470 words)

 An acute scalene triangle   (Site not responding. Last check: 2007-10-08) Hi- I'm on a mission--I'm suppose to have a group of children write up a hypotheses about the altitudes and angle biscetors of the follwing 3 types of triangle--equilateral, isosceles and acute scalene triangle. Is there such a thing as a acute scalene triangle and why or why not. (In other words, each angle of an acute triangle is less than 90 degrees.) A SCALENE triangle is one in which all sides have different lengths (and therefore, all angles have different measures). mathcentral.uregina.ca /QQ/database/QQ.09.01/kim2.html   (125 words)

 Triangle - web design and marketing > Services > Offline marketing Acute Marketing’s experience is in both business-to-business and consumer markets, large and small, across a range of sectors including Food, Drink, Automotive, Communications, Technology, Retail, Financial Services, Professional Services, Construction and Manufacturing. Using market research and planning techniques, Acute Marketing look at the status of a brand, it’s objectives and it’s present strategies when developing a successful brand. Acute use consumer insights to generate strong ideas and implement these to achieve objectives, cost-effectively through: www.trianglemultimedia.com /services_offline.htm   (302 words)

 Third side of Acute Triangle   (Site not responding. Last check: 2007-10-08) I am trying to determine the length of the third side of an acute triangle. Knowing the lengths of two sides of an acute triangle does not determine the length of the third side. For example you have a triangle with side lengths L and S with S <= L and T is the length of the third side. mathcentral.uregina.ca /qq/database/QQ.09.01/don1.html   (238 words)

 All my sons review - All the Pretty Horses Acute angles- An acute angle is an angle whose measure is between 0 and 90. Acute triangle-An acute triangle has three acute angles. INTRODUCTION The outbreak of Severe Acute Respiratory Syndrome SARS is burdening the world with significant health and economic consequences. www.freeforessays.com /categories/Novels/A/1.html   (2042 words)

 Triangle Types on Almondnet   (Site not responding. Last check: 2007-10-08) Shape, and the specific derived types are Circle, Square, and Triangle:... Identifying different wing types is useful to experimenters who want to apply their own specific set of design... line forming the triangle around the obverse bust - all other types have a single... www.commercial-mortgage-rates.co.uk /mortgages/triangle_types.html   (377 words)

 Recognizing the Type of a Triangle - - kwizNET Math & English Homeschool/Afterschool/Tutoring Lessons/Worksheets/Quizzes Question 1: A triangle with all angles acute is called Question 2: A triangle with no sides of equal length is called Question 7: A triangle with 2 sides of equal length is called www.kwiznet.com /p/takeQuiz.php?ChapterID=1469&CurriculumID=4   (132 words)

 flooble :: perplexus :: Geometry : A Cute Dissection An obtuse triangle is a triangle with one obtuse angle. If you can find such a dissection, what is the smallest number of acute triangles into which any obtuse triangle can be dissected? The graphic shows how this obtuse triangle can be divided into almost all acute triangles except one - the blue one. www.flooble.com /perplexus/show.php?pid=1940&cid=16443   (185 words)

 Polymer Clay Express Clay Extruder and Accessories ExDisc 18 - 4 tiny triangles - 1inch ExDisc 19 - 3 small triangles - 1inch ExDisc 19 - 3 small triangles - 2inch polymerclayexpress.com /clay_extruder.html   (3937 words)

 Yan's puzzles: Random Acute Triangle   (Site not responding. Last check: 2007-10-08) Hold Infinity in the palm of your hand What is the probability that it will be an acute triangle? (A cute triangle is a triangle where all three of its angles are less than 90 degrees.) www.xunique.net /~yan/puzzles/triangle.html   (45 words)

 Imagination 3´ Rug, Triangle   (Site not responding. Last check: 2007-10-08) Get New Price Imagination 3andacute; Rug, Triangle Now! Would you like to buy Imagination 3andacute; Rug, Triangle Youftll find it in these inshaggyin nylon rugs that theyftll love to stand and lounge upon. www.buy-furniture.org /i/Imagination-3-acute--Rug--Triangle.html   (147 words)

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