Entire surface area of a cone: pi*radius^2 plus pi*radius*slant length
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False. The surface area formula for a right cone is not the same as the surface area formula for an oblique cone.
This cone has a lateral surface area of approximately 226.73cm2
Surface area is 188.5 feet2
True. This is because the slant height of an oblique cone cannot be defined.
A right cone with a radius of 4 and a slant height of 13 has a total surface area of about 213.63 units2