Question

Which set of side lengths form a right triangle?

a) 3ft, 6ft, 5ft
b) 15m, 20m, 25m
c) 7cm, 8cm, 10cm
d) 10in, 41in, 40in

please help!!

Answer 1

B. 15m, 20m, 25m

use pythagorean theorem

a²+b²=c²

225+400=625

the square root of 625 is 25