Question

What’s B
I have A squared and C square

Answer 1

b=
`√(56)`

Explanation:

Pythagorean th: a^2+b^2=c^2

b^2+5^2=9^2

b^2+25=81

b^2=81-25

b^2= 56

b=
`√(56)`

i tried to do it the way you kinda gave the picture, not sure if right or not

Answer 2

Explanation:

5^2 + b^2 = 9^2

25 + b^2 = 81

b^2 = 56

square root both sides and b = 7.48 cm