## anonymous 4 years ago The pizza has a diameter of 12 inches. What is the closest to the area of the pizza? a. 432 square inches b. 168 square inches c. 108 square inches d. 72 square inches

1. anonymous

Area of a circle = pi*r^2, 2r = diameter

2. anonymous

2*3.14*6

3. anonymous

ohhh yup ur right

4. anonymous

2pi r

5. anonymous

@danny_dumond You posted the formula for the circumference, not the area.

6. anonymous

Cool. I keep forgetting to multiply by 2....thanks guys. C=pi*d Area of a circle=A=pi*r^2

7. anonymous

yes i just realized sorry

8. anonymous

2r = diameter r = (diameter/2) $\pi*(\frac{diameter}{2})^{2} =$

9. anonymous

Did you get 113.04?

10. anonymous

Yep. If you use 3 as pi you'll get 108.

11. anonymous

Thanks!!!

12. anonymous

No problemo