If the radius of a circle is decreased by 50%, find the percentage dec

1.	If the radius of a circle is decreased by 50%, find the percentage decrease in its area.
A.	0.55
B.	0.65
C.	0.75
D.	0.85
Answer» D. 0.85

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If the radius of a circle is decreased by 50%, find the percentage decrease in its area.

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