Question

Which of these four sets of side lengths will form a right

I think it’s set 4 but I need to know why

Answer 1

set 4

Explanation:

if u use the Pythagorean theorem for all these measurements, then you'll see:

set A:

(√2)²+(√7)²≠9²

2+7≠81

set B:

2² + (√5)²≠9²

4+5≠81

Set 3:

(√6)² + 2² ≠ 10²

6+4≠100

Set 4:

(√2)² + (√7)² = 3²

2+7=9

Hope this helps :)