If the radius of a circle increases from 3 cm to 3.2 cm, then the increase in the area of the circle is

If the radius of a circle increases from 3 cm to 3.2 cm, then the incr

1.	If the radius of a circle increases from 3 cm to 3.2 cm, then the increase in the area of the circle is
A.	\[1.2\pi \,\,c{{m}^{2}}\]
B.	\[12\pi \,\,c{{m}^{2}}\]
C.	\[6\pi \,\,c{{m}^{2}}\]
D.	None of these
Answer» B. \[12\pi \,\,c{{m}^{2}}\]

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If the radius of a circle increases from 3 cm to 3.2 cm, then the increase in the area of the circle is

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