Question

If radius of a sphere is doubled then ratio of their surface area is​

Answer 1

Answer:

If the radius of a sphere is doubled , then the increase in surface area is 300% The increase in surface area is 300% when the radius of a sphere is doubled. Therefore it is concluded that if the radius of a sphere is doubled then the ratio of their surface area is 4 times the old area.

Step-by-step explanation:

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Answer 2

Answer:

Diameteris the ratio of their surface area if it's radius of a sphere is doubled