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Mathematics 19 Online
OpenStudy (anonymous):

@Directrix

OpenStudy (anonymous):

Directrix (directrix):

SA cone = B + pi * r * L where B is the area of the circular base and L is the slant height.

Directrix (directrix):

The way the diagram is drawn, I assume that 7 is the diameter of the base.

OpenStudy (anonymous):

maybe?

OpenStudy (anonymous):

Yeah

OpenStudy (rayep12):

no that is the radius

Directrix (directrix):

SA cone = B + pi * r * L SA cone = pi * (3.5)^2 + pi * 3.5 * 7.5

OpenStudy (rayep12):

you take the radius and double it then multiply it by 3.14 or PI

Directrix (directrix):

That gives 120.95 approx.

Directrix (directrix):

With 7 as the radius which I believe is an incorrect interpretation, the result is 318.87 approx.

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