Question

What is T.S.A of sphere if radius is increased to p%?

Answer 1

TSA os sphere= 4π(r*p/100)*(r*p/100)

Answer 2

TSA of a sphere is 4/3 * pi * r^3

$\frac{4}{3} \pi \:{r}^{3}$

p% = p / 100

r is increased to p%

Therefore, radius becomes

r*p/100

Substitute this in the formula

$\frac{4}{3} \pi {(r * \frac{p}{100} })^{3}$

Hope this helps

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