Question

http://static.k12.com/calms_media/media/1299500_1300000/1299524/1/e9f50d172cbcf3d20cbf1dc8a700458d4dbcd729/141090.jpg

Answer 1

pythagorean theroem

Answer 2

The Formula : a^2+b^2=c^2

Answer 3

I don't follow

Answer 4

what are the choices? if it has choices then let me see them

Answer 5

A.
20

B.
12

C.
15

D.
13

Answer 6

first 9 times 9?

Answer 7

then what is 12 times 12?

Answer 8

then add them together

Answer 9

9*9=81
12*12=144

Answer 10

81+144=225

Answer 11

then what is the square root of 225?

Answer 12

15?

Answer 13

your right!

Answer 14

so 15 was the answer

Answer 15

Thank you very much. :)