Question

the radius of sphere is 5 cm .if the radius is increased by 20% then find how much % volume is increased​

Answer 1

Step-by-step explanation:

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Answer 2

heyya,

radius=5cm

volume¹ of the sphere=2/3 ×22/7×5³

now,

radius after increasing 20%=5+(5×20/100)

=5+1=6cm

so, the volume² after increasing20%=2/3×22/7×6³

now the volume increased =volume ²-volume¹

=9504/21 -5500/21

=4004/21cm³

the % of volume increased=4004/21devided byvolume²×100

=42.13%

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