Question

What side lengths equal a right triangle? choose all that apply

Answer 1

Answer:

A, B and C.

Step-by-step explanation:

If its a right triangle then c^2 = a^2 + b^2  where a, b and c are the 3 sides, c being the hypotenuse.

3^2 + 6^2 = 9 + 36 = 45

and (√45)^2 = 45   so the first set  (A) is a right triangle.

2.5^2  + 6^2 = 6.25 + 36 = 42.25.

6.5^2 = 42.25  so B is also a right triangle.

C:

4^2 + 8^2 = 16 + 64 = 80

(√80)^2 = 80 so C is  right-angled also.