Mathrocks4me
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
Delete
Share
This Question is Closed
Wired
Best Response
You've already chosen the best response.
2
Area of a circle = pi*r^2, 2r = diameter
danny_dumond
Best Response
You've already chosen the best response.
0
2*3.14*6
danny_dumond
Best Response
You've already chosen the best response.
0
ohhh yup ur right
danny_dumond
Best Response
You've already chosen the best response.
0
2pi r
Wired
Best Response
You've already chosen the best response.
2
@danny_dumond You posted the formula for the circumference, not the area.
Mathrocks4me
Best Response
You've already chosen the best response.
0
Cool. I keep forgetting to multiply by 2....thanks guys. C=pi*d Area of a circle=A=pi*r^2
danny_dumond
Best Response
You've already chosen the best response.
0
yes i just realized sorry
Wired
Best Response
You've already chosen the best response.
2
2r = diameter
r = (diameter/2)
\[\pi*(\frac{diameter}{2})^{2} = \]
Mathrocks4me
Best Response
You've already chosen the best response.
0
Did you get 113.04?
Wired
Best Response
You've already chosen the best response.
2
Yep. If you use 3 as pi you'll get 108.
Mathrocks4me
Best Response
You've already chosen the best response.
0
Thanks!!!
Wired
Best Response
You've already chosen the best response.
2
No problemo