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

Question

Kathy

22 March, 10:34

+1

Answers (1)

Know the Answer?

Walsh · Answer 1

They must conform with Pythagoras theorem

It is set 4 because

(sqrt 2) ^2 + (sqrt 7) ^2 = 3^2

2 + 7 = 9

Which of these four sets of side lengths will form a right triangle?Set 1square root of 2 cm, 9 cm, square root of 7 cm.Set 22 in, square root of 5 in, 9 in.Set 3square root of 6 mm, 2 mm, 10 mmSet 4square root of 2 ft, square root of 7 ft, 3ft