Question

The sides of a triangle have lengths of x, x + 5, and 25. If the longest side is 25, which of the following values of x would make the triangle right?

A.
10
B.
12
C.
15
D.
17

Answer 1

C, 15

Answer 2

\[15^{2}=225\]\[20^{2}=400\]\[400+225=625\]\[\sqrt{625}=25\]