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The area of a circle is increased by 22Sq.cm when it’s radius is increased by 1cm. The original radius of the circle is_________?

/ Areas, Mathematics Mcqs / By
The area of a circle is increased by 22Sq.cm when it’s radius is increased by 1cm. The original radius of the circle is_________?

A. 6cm
B. 3.2 cm
C. 3 cm
D. 3.5 cm