The area of a circle is increased by 22 sq cm when its radius is increased by 1 cm. Find the original radius of the circle.

The area of a circle is increased by 22 sq cm when its radius is incre

1.	The area of a circle is increased by 22 sq cm when its radius is increased by 1 cm. Find the original radius of the circle.
A.	6 cm
B.	3.2 cm
C.	3 cm
D.	3.5 cm
Answer» D. 3.5 cm

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The area of a circle is increased by 22 sq cm when its radius is increased by 1 cm. Find the original radius of the circle.

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