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OpenStudy (anonymous):
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
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OpenStudy (anonymous):
Spherical surface = π*d^2 Do you know how to get "d" from "circumference"?
OpenStudy (anonymous):
No
OpenStudy (anonymous):
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.
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