Find the area of a white sheet required to prepare a cone with a height of 21cm and the radius of 20cm.

Find the area of a white sheet required to prepare a cone with a heigh

1.	Find the area of a white sheet required to prepare a cone with a height of 21cm and the radius of 20cm.
A.	$$ {3080}cm^2$$
B.	$$ {2300}cm^2$$
C.	$$ {3460}cm^2$$
D.	$$ {3600}cm^2$$
Answer» B. $$ {2300}cm^2$$

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Find the area of a white sheet required to prepare a cone with a height of 21cm and the radius of 20cm.

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