Question

If the radius of a solid sphere is increased by 10

Answer 1

Answer:

Its volume is increased by 1000

Step-by-step explanation:

volume =(4πr^3)÷3

Answer 2

If The radius of Sphere is increased by 10% Their will be Questions , which can be asked ..

(1) Find the % increase in Its Surface Area ?

(2) Find the % increase in Its Volume ?

Solution (1) :-----

$inc. \: in \: surface \: area = 2 \times 10 + \frac{10 \times 10}{100} = 21\%$

Solution (2) :-------

$inc. \: in \: volume \: = 21 + 10 + \frac{21 \times 10}{100} \\ \\ = 31 + 2.1 \\ \\ = 33.1\%$

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