Question

Which of the following could NOT be the lengths of the sides of a right triangle?
a.
9 ft, 12 ft, 15 ft
c.
4 cm, 7.5 cm, 8.5 cm
b.
5 in., 10 in., 15 in.
d.
1.5 m, 2 m, 2.5 m

Answer 1

The answer is b. 5 in., 10 in., 15 in. You can check \[5^2+10^2\] is not equal to \[15^2\].