We know that the area of a semicircle = 1/2(πr^2)
r = the radius
We also know that the area of a rectangle = xy
x = width
y = length
In our problem,
r = w
x = w
y = w + 5
A(w) = w(w + 5) - 1/2(πw^2)
Let's simplify the right side of the function.
A(w) = w^2 + 5w - 1/2πw^2
It would be 0.38 the 8 is repeating
Answer:
Attached image
Step-by-step explanation:
The first step is to line it up in the Pythagorean theorem, then you want to move the 
to the other side of the equation via subtraction from both sides in order to isolate the 
. After that, you'll end up with 
then you'll want to square root both sides and end with 
.
