Special Right Triangles Chapter 7.4. Special Right Triangles 45-45-90 triangles 30-60-90 triangles.

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Presentation transcript:

Special Right Triangles Chapter 7.4

Special Right Triangles triangles triangles

45°- 45°- 90° Triangles Theorem 7.8 In a 45°- 45°- 90° triangle, the 2 legs have the same length and the hypotenuse is

Find the Hypotenuse

Find the legs

Find x

Find a, b, and c

30°- 60°- 90° Triangles Theorem 7.9 In a 30°- 60°- 90° Triangle the hypotenuse is twice the length of the smallest leg, while the longer leg is

Finding the sides of a 30°- 60°- 90° Triangle 1. Identify what sides of the triangle are known (the hypotenuse, smaller leg or the larger leg). 2. Hypotenuse = 2(smaller leg) 3. Larger leg = (smaller leg) 8

Find x and y 12

Find x and y

Find d, e, and f

Find x and y

°

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