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Mathematics 12 Online
OpenStudy (anonymous):

Find volume and total area for the regular pyramid.

OpenStudy (anonymous):

OpenStudy (anonymous):

For volume, find the area of the base and multiply by 1/3 the height. For the surface area, find the area of the base and add it to the area of all of the sides.

OpenStudy (anonymous):

how?

OpenStudy (anonymous):

How to which part?

OpenStudy (anonymous):

the area of the base

OpenStudy (anonymous):

The area of a regular hexagon with side length \(t\) is given by \(\dfrac{3\sqrt3}{2}t^2\).

OpenStudy (anonymous):

so t =4

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

so the answer i need is xx Sqrt x

OpenStudy (anonymous):

how do I solve 3 Sqrt3/2 *16

OpenStudy (anonymous):

Just simplify. 16/2=8, 8*3sqrt3 = 24 sqrt 3

OpenStudy (anonymous):

You can leave it like that for now, while you work on the rest of the problem.

OpenStudy (anonymous):

ok, I get the are of the faces as 72 is that correct?

OpenStudy (anonymous):

*the total of the faces

OpenStudy (anonymous):

Yes, that's correct.

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

need the lateral and total area of this figure

OpenStudy (anonymous):

If you've finished with one question, please select a best answer for that question and then close it, then open a new question. That way your new question will be on top of the open questions so people will see it and know it's a new question. :)

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