The radius of a cone is 20 cm and height is 21 cm, the total surface area of the cone is in square cm:

The radius of a cone is 20 cm and height is 21 cm, the total surface a

1.	The radius of a cone is 20 cm and height is 21 cm, the total surface area of the cone is in square cm:
A.	3080
B.	3160
C.	2920
D.	3240
Answer» B. 3160

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The radius of a cone is 20 cm and height is 21 cm, the total surface area of the cone is in square cm:

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