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.