6. A balloon has a circumference of 16 cm. Use the circumference to approximate the surface area of the balloon to the nearest square centimeter. (1 point) 804 cm2 326 cm2 256 cm2 81 cm2

Question

anonymous · Answer

Spherical surface =  π*d^2

Do you know how to get "d" from "circumference"?

anonymous · Answer

No

anonymous · Answer

The circumference is found by multiplying the diameter by pi.

So if you're given the circumference, then you can find the diameter by dividing the circumference by pi.