What is total surface area of a cone where, r is radius and l is sl

1.	What is total surface area of a cone where, r is radius and l is slant height?
A.	r (l + r)
B.	2 r (l+r)
C.	rl
D.	$$ 2 rl^2$$
Answer» B. 2 r (l+r)

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What is total surface area of a cone where, r is radius and l is slant height?

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