Question

WILL GIVE A MEDAL
The hypotenuse of a right triangle is 7 inches, and one of the legs is sqrt 13 inches. Find the length of the other leg.

A. 6 inches
B. sqrt 62 inches
C. sqrt 128 inches

Answer 1

From pythagoras theorem: we have (length of hypotenuse)^2 - (leg 1)^2 = (leg 2)^2. So we have 7^2 - (sqrt13)^2= (leg 2)^2

Answer 2

@shawmoes So... what do I do from here? I get really confused when they throw squareroots in the problem. :/

Answer 3

When you square a number with a square root, you just get that number underneath the square root. So

Answer 4

Oh, okay! So... 7^2 - 13 = c?

Answer 5

7^2 - 13 = c^2

Answer 6

#sayNOtoPERFUMESotherTHANattar

Answer 7

c^2= 36?? Is that correct?

Answer 8

Yes !

Answer 9

So what is c ?

Answer 10

So it be 6?

Answer 11

Correct :) . Good job.

Answer 12

Oh, thank you so much!!