Question

I also need help on this one smh

Answer 1

C. 176.6 Square feet (I think)

Explanation:

I tried many different ways and got three of the answers above but I think this is the right one.

The equation to find area of a circular cone base:
`A= \pi r^2`

1. We are given the diameter (15 Feet) but we need to find the radius. So we use the diameter to radius formula:
   `r = (d)/(2)`
2. Plug in numbers:
   `r=(15)/(2)` ≈
   `7.5`
3. Use the Area formula now that you have radius:
   `A=\pi 7.5^2`
4. Solve and get =
   `a = 176.71458676`
5. Looking at the options the closest one to our answer (off by one-tenth) is C.

Sorry if you get this wrong. I tried lol.