Oh this is super easy okay so the hypothesis is the long size and the Pythagorean theorem is a2+b2=c2
So 7(2) can be a2 ( or b2 it doesn’t matter)
So let’s put this in the equation
7(2)+b2=c2
So c2 is always ALWAYS gone be the hypothesis (long side) so it’s 10(2)
49+b2=100
So since we don’t have a b2 we’re gonna SUBTRACT
100+49= 149
Now take the squareroot
149= 12.206 so this is the answer
Now you do number 15 by yourself and I help you in the comments!!!! :)
