I need help finding the surface area of a cone.
https://www.connexus.com/content/media/595718-3162012-84017-AM-90970852.png
I would also like the steps to finding it because just giving me the answer is no help.

Question

I need help finding the surface area of a cone.
https://www.connexus.com/content/media/595718-3162012-84017-AM-90970852.png
I would also like the steps to finding it because just giving me the answer is no help.

fibonaccichick666 · Answer

ok so, what do you know about the cone? or just in general?

anonymous · Answer

I need help with the formula to finding the surface area of a cone.

anonymous · Answer

what is the problem because we cant loging into ur account

anonymous · Answer

Its a cone with a slant height of 7 and diameter of 8.

fibonaccichick666 · Answer

ok why don't you draw a picture for yourself

anonymous · Answer

What do you mean? So that you can see what it looks like?

fibonaccichick666 · Answer

No, for you for practice and so that we can label it for future use in the problem

anonymous · Answer

I don't know what you mean... To practice what?

fibonaccichick666 · Answer

Well if on a test you were only given the information you provided, without a picture could you draw it? this is the practice I speak of

anonymous · Answer

Yes, I can draw it...

fibonaccichick666 · Answer

then please do

anonymous · Answer

|dw:1367118791081:dw|

anonymous · Answer

so what u dont understand it is just apply a formula

anonymous · Answer

Yes

fibonaccichick666 · Answer

ok good, now, can you find the circumference of the base?  (btw We are deriving the formula)

anonymous · Answer

25.12

fibonaccichick666 · Answer

ok so you can leave it in terms of pi but now we know the arc length of the piece of circle with radius 7.  Can you draw this piece?

anonymous · Answer

What do you mean?

fibonaccichick666 · Answer

|dw:1367122796121:dw|  This is what I'm getting at.