Math, asked by subhan2018, 1 year ago

If the diameter of the circle is increased by 200 percent its area is increased by

Answers

Answered by Syngrome
0
Area (A) = πd²/4
New dia = 2d,
A' = (π/4)*(2d)²
A' = πd²
A' = 4A
Therefore percentage change
= (A' - A)/A *100%
= 300%
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