I want to build a right triangle deck behind my house. The hypotenuse of the deck will be 40 feet long. The other two sides of the deck will be equal in length. What is the length of the deck?

A:56.57 ft
B: 6.32 ft
C: 4.47 ft
D: 28.28 ft

Question

I want to build a right triangle deck behind my house. The hypotenuse of the deck will be 40 feet long. The other two sides of the deck will be equal in length. What is the length of the deck?

A:56.57 ft
B: 6.32 ft
C: 4.47 ft
D: 28.28 ft

jdoe0001 · Answer

is a right triangle 2 sides are equal use the 45-45-90 rule => http://www.mathwarehouse.com/geometry/triangles/right-triangles/images/picture-45-45-90-special-right-triangle.gif