1. Special Right Triangles
Theorem 7.6 – Isosceles Right Triangle Theorem
In an isosceles right triangle, the length of the hypotenuse is 2 times the length of a leg.
BC = 6.01* 2 cm

2. WALLPAPER TILING If each 45°-45°-90° triangle in the figure has a hypotenuse of millimeters, what is the perimeter of the entire square?
Answer: 80 mm
Example 3-1c

3. Find b.
Answer:
Example 3-2c

4. Special Right Triangles
Theorem Theorem
In a triangle, the length of the hypotenuse is twice the length of the shorter leg, and the length of the longer leg is 3 times the length of the shorter leg.
BC = 6.40 cm
BD = 3.2 * 3 cm

5. Find BC.
Answer: BC = 8 in.
Example 3-3c