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OpenStudy (anonymous):
@Directrix
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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
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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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