when the diameter of a circle is increased by 10% its area increases by?
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area of circle is πr^2
diameter is 2 times radius
if diameter increases by 10%
area increases by (10*2)% =20%
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diameter is 2 times radius
if diameter increases by 10%
area increases by (10*2)% =20%
mark me as brainliest
jenjen:
i thought the area increased by 21%
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