Which set of side lengths form a right triangle?

A 14m, 20m, 25m

B 10cm, 6cm, 8cm

C 7cm, 8cm, 10cm

D 3ft, 6ft, 5 ft

If you have a right triangle, you can use the Pythagorean theorem, which is a²+b²=c². (c is the longest side or the hypotenuse)

You plug in the shorter sides for a and b, then you square root the answer.

A 14m, 20m, 25m

14² + 20² = 25²

196 + 400 = 625

596 = 625 X

B 10cm, 6cm, 8cm

6²+8²=10²

36+64=100

100=100 So your answer is B