1.

If the radius of sphere is doubled find the %change in volume​

Answer»

Step-by-step explanation:

LET the RADIUS be R

Now the surface area = 4π(r) ² = 4πr²

The radius of the sphere is doubled.

The radius = 2r.

Now the surface area = 4π(2r)² = 16πr² .

Increase % in area = 16πr²-4πr²/4πr² * 100 = 12/4*100 = 300% .



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