Which of these four sets of side lengths will form a right triangle?
Set 1
square root of 2 cm, 9 cm, square root of 7 cm.
Set 2
2 in, square root of 5 in, 9 in.
Set 3
square root of 6 mm, 2 mm, 10 mm
Set 4
square root of 2 ft, square root of 7 ft, 3ft
