Question

Help what is it i cant do whatever peganroym therom thing is

Answer 1

13.4

Explanation:

use a^2+b^2=c^2

longest side=18 so c=18

other leg= 144

plug it in: 12^2+b^2=18^2

144+b^2=324

144+b^2=324-144

180 square root= 13.4