Question

Given the measures of the sides of a triangle below, which set could form a right

triangle?
A. 6, 7, 8
B. 9, 12, 15
C. 12, 15, 20
D. 20, 25, 30

(give a brief explanation please)

Answer 1

B.

(9)^2 + (12)^2 = 225

Square root of 225 gives you 15 !!

We found it by applying Pythagorean’s theorem which only applies to right triangles.

Hope it help !!