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How would I find the surface area of the cone in terms of pi? It has a radius of 7 cm and a slant height of 19 cm.

How would I find the surface area of the cone in terms of pi? It has a radius of 7 cm and a slant height of 19 cm. class=

Verified Answer :

The formula is SA = \(\pi r^{2} + \pi rl\).  r is the radius and l is the slant height.  In your case it would be \(49\pi + 133\pi = 172\pi\).


L.S.A = pi (7) (19) similar to 133pi
3.14 133 similar to 417.62
similar to 417.62cm^2

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