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xxTIMURxx [149]
3 years ago
11

What is the surface area of a sphere with a radius of 13 units?

Mathematics
2 answers:
allochka39001 [22]3 years ago
8 0

Answer:

2,122.64 square units or 676 \pi units squared

Step-by-step explanation:

The surface area of a sphere can be found using the formula A=4\pi r^2. Since the radius is 13 units, substitute r=13.

SA=4\pi r^2\\SA = 4 \pi (13)^2\\SA = 4 \pi *169\\SA = 2122.64

Without multiplying 3.14 for \pi, the answer is

SA = 169*4 \ pi\\SA = 676 \pi

jeyben [28]3 years ago
3 0

Answer676pie units2:

Step-by-step explanation:

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