Question

A rectangular glass window is divided into two equivalent right triangles by a diagonal brace.

What is the length of the diagonal brace?



A 9 inches


B 12 inches


C 15 inches


D 21 inches

Answer 1

15 inches because u have to use the Pythagoras formula which is a^2+b^2=c^2 Which is 9^2+12^2=225
Then the square root of 225= 15