The percentage reduction in the area of a circle when it's radius is decreased by 10%
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hey friend
area of circle= πr²
if radius decrease 10%
area of circle= π(0.9r)²
different of area = πr²-0.81πr²
= 0.19πr²
percentage of reduction area=( 0.19πr²/πr²)×100
= 0.19×100
= 19%
plzz mark brainiest my answer
area of circle= πr²
if radius decrease 10%
area of circle= π(0.9r)²
different of area = πr²-0.81πr²
= 0.19πr²
percentage of reduction area=( 0.19πr²/πr²)×100
= 0.19×100
= 19%
plzz mark brainiest my answer
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