Question

HELP ME! A right triangle has one side of length 7 and a hypotenuse of length 10. How long is the third side of the triangle?
a.sqrt 149 b.51 c.sqrt 51 d.3

Answer 1

C

Answer 2

Use the pythagorean theorem.\[x ^{2}+7^{2}=10^{2}\]\[x ^{2}=100-49=51\]\[x=\sqrt{51}\]

Answer 3

thank you both!