The area of a circle is proportional to the square of its radius. A sm – McqOptions

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1.	The area of a circle is proportional to the square of its radius. A small circle of radius 3 cm is drawn within a larger circle of radius 5 cm. Find the ratio of the difference between the area of the larger circle and that of the smaller circle to the area of the larger circle.
A.	16: 25
B.	9: 25
C.	9:16
D.	16: 27
Answer» B. 9: 25

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