QUESTION 96 I want to build a right triangular deck behind my house. The hypotenuse of the deck will be 25 feet long. The other two sides of the deck will be equal in length. What is the length of the deck?


17.68 feet

15.98 feet

10.34 feet

9.32 feet

Respuesta :

We know that a^2 + b^2 = c^2. And we also know that a = b. Therefore we can basically say that 2(length)^2 = c^2. So:
2x^2 = 25^2
2x^2 = 625
x^2 = 312.5
x = 17.68

So the first answer is correct! :)