Question

Which set can represent the side lengths of a right triangle?

A. 5,11,12
B.2,4, 2sqrt 5
C.6, 7, sqrt 21
D. 5, 7, 5, sqrt 3

Answer 1

B hope this helps ...........

Answer 2

B

Explanation:

2²+4²

=4+16

=20

=√20

which is the same as

=√4×5

= sqrt of 4 is 2

therefore 2√5