The area of a circle is increased by 22 cm2 when its radius is increas – McqOptions

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1.	The area of a circle is increased by 22 cm2 when its radius is increased by 1 cm. The original radius of the circle is
A.	3 cm
B.	4 cm
C.	6 cm
D.	7 cm
Answer» B. 4 cm

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