What is the surface area of a right cone with a slant height of 6 and a radius of 4? If necessary, round your?

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What is the surface area of a right cone with a slant height of 6 and a radius of 4? If necessary, round your?

What is the surface area of a right cone with a slant height of 6 and a radius of 4? If necessary, round your answer to two decimal places.

2007-04-27 05:27:42 · 2 answers · asked by bekah_2009 2 in Science & Mathematics ➔ Mathematics

2 answers

S= 2pirh +pir^2 =201.06 (no units defined)

2007-04-27 07:20:08 · answer #1 · answered by santmann2002 7 · 0⤊ 1⤋

The area of the base is
(pi)(radius)^2 = 16pi

The area of the rest of it is
(pi)(slant)(radius) = 24pi

So the total surface area is
16 pi + 24 pi = 40 pi = 125.66

2007-04-27 05:35:21 · answer #2 · answered by Mathematica 7 · 2⤊ 0⤋