Question

I need help Someone please help me!!

Answer 1

2. The area for a circle is as follows:
A = π${r^2}$

The radius of the circle is 4 in, so we plug that into the equation.

A = π (4${in.^2}$)

4 ${in.^2}$ = (4 in.)(4 in.) = 16 ${in.^2}$

A = 16π ${in.^2}$

This is the area for the whole pizza, so divide that by 2 to get the area of the pepperoni

a) 8π ${in.^2}$

For the bacon, we can just divide the value we already have by 2, since it is half the area of the pepperoni

b) 4π ${in.^2}$

3. This question is asking for the circumference, whose equation is as follows:
C = 2 π r

We can use the area formula, A = π${r^2}$ to find the radius of this circle
36π = π${r^2}$

Divide both sides by π:
36 = ${r^2}$

Square root both sides:
r = 6 in.

Plug in this value to the circumference formula, C = 2 π r
C = (2)(π)(6 in.)

Your final answer is:
C = 12π in.