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valina [46]
3 years ago
7

A spheres radius is multiplied by 2. How is it’s surface area affected

Mathematics
1 answer:
dexar [7]3 years ago
3 0

Answer:

The surface area is multiplied by 3.

Step-by-step explanation:

If r is the radius of a sphere its surface area = 4(pi)r^2. If the radius is doubled then its surface area = 4(pi)(2r)^2 = 4*4(pi)r^2. So the surface area becomes 4-fold or the increase in surface area is 300%.

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