Surface Area of Right circular cone with only radius

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bizimath

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A right circular cone has a base with a radius of 2 units. What is the total surface area of the cone, including the base, in square units?

Nothing else is given. Please help!
 
bizimath said:
A right circular cone has a base with a radius of 2 units. What is the total surface area of the cone, including the base, in square units?

Nothing else is given. Please help!
Click to expand...

You need more info to evaluate the total surface area.
 
One surface area formula uses the radius and the height. If you have no way to determine the height, then you could give a symbolic answer, in terms of h.

Another formula uses the slant height (L), so a different symbolic answer could be in terms of L. :)
 
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