SOLUTION: I need to know the square footage of the lateral surface area of a cone shape. Height= 30' Diameter= 15'

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Question 334901: I need to know the square footage of the lateral surface area of a cone shape.
Height= 30'
Diameter= 15'
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The lateral surface area of a cone, is given by:



Where is the radius of the base and is the slant height.

Knowing (one-half of the diameter), and the height, , use Pythagoras to calculate the slant height:



Putting it all together in one formula:



Just plug in your values and do the arithmetic.


John

My calculator said it, I believe it, that settles it