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) 6 cm (b) 3 cm (c) 4 cm (d) 3.5 cm

Answer» 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) 6 cm (b) 3 cm (c) 4 cm (d) 3.5 cm


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