Download Pre-Algebra Types of Triangles Scalene Isosceles Equilateral Right

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Pre‐Algebra Types of Triangles Scalene A Scalene Triangle has 3 sides of different lengths. Because the sides are of different lengths, the angles must also be of different measures. Equilateral An Equilateral Triangle has all 3 sides the same length (i.e., congruent). Because all 3 sides are congruent, all 3 angles must also be congruent. This requires each angle to be 60⁰. 60⁰ Isosceles An Isosceles Triangle has 2 sides the same length (i.e., congruent). Because two sides are congruent, two angles must also be congruent. Right A Right Triangle is one that contains a 90⁰ angle. It may be scalene or isosceles, but cannot be equilateral. Right triangles have sides that meet the requirements of the Pythagorean Theorem. 60⁰
60⁰ Version 2.1
12/01/2010
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