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ohaa [14]
3 years ago
5

The distance around the middle of a sphere (the circumference) equals 37.699 in. what is the surface area of the sphere?

Mathematics
1 answer:
podryga [215]3 years ago
5 0

To solve this problem you must apply the proccedure shown below:

1. Clear the radius from the formula for the circumference of a circle and substitute values, as following:

C=2\pi r\\ r=C/2\pi \\ r=37.699in/2\pi \\ r=5.99in

2. Substitute the radius calculated into the formula for calculate the surface area of the sphere:

SA=4\pi r^{2} \\ SA=4\pi(5.99in^{2})\\ SA=450.88in^{2}

The answer is: 450.88in^{2}

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