Answer:
8.94 (Rounded would be 9)
Step-by-step explanation:
By using the Pythagorean Theorem formula,
A^2+B^2 = C^2
You have the hypotenuse (c) = 12
and you have a leg (a) = 8
and you're trying to find another leg (b) = x
In order to find this, you'll have to change up the formula in order to find (B) instead of (C)
B^2 = C^2 - A^2
(B) = (12)^2 - (8)^2
(B) = 144 - 64
(B) = 80
Square root of 80
B = 8.9
A^2 - b^2 = (a-b)(a+b)
To test it, expand the right hand side.
4.5x5=22.5
not sure if this is right, but hope it helps
Question a is 48 i think! because if you do 12 x how many side there are. it’s 4 so 12 x 4
