Question

Sixth Question Of The Day (S.Q.O.T.D.)

Answer 1

Did I miss the fifth one?

Answer 2

Yes.

Answer 3

Been looking for it!

Answer 4

On this one: http://easycalculation.com/area/learn-hexa-pyramid.php

Volume of a pyramid is 1/3 base X height, and so we need the base of this one.

Answer 5

See now, I'm having to look things up because I don't remember all of the formulas either. :D

Answer 6

I think wolfram alpha is reliable: http://mathworld.wolfram.com/HexagonalPyramid.html

So here they are saying that the volume of a hexagonal right pyramid is 1/2 times sqrt 3 times height times apothem.

Answer 7

Just a moment, please. I am going to make sure I've got this one figured first!

Answer 8

So ... area of a hexagon is what we need. And we have a regular hexagon with a side of 4.

Answer 9

So the base is 24 sqrt 3 in area

Answer 10

and we need to multiply that times 1/3 and times the height which is 4 sqrt 3

So, 1/3 times 24 sqrt 3 times 4 sqrt 3

Answer 11

96 sqrt3 cm^3

Answer 12

So 8 sqrt 3 times 4 sqrt 3 = 32 times 3 = 96

Answer 13

Or just 96 cm^3?

Answer 14

I think it is just 96 cm^3, because

Answer 15

Yes, just 96, because 1/3 times 24 sqrt 3 gives you 8 sqrt 3 and then 8sqrt3 times 4 sqrt 3 gives

Answer 16

32 times the sqrt 3 squared

Answer 17

Okay.

Answer 18

which would be 36 X 3 or 96

Answer 19

Okay, I tagged you on another question.

Answer 20

Problem is, I remember the really simple formulas and then derive the other stuff! Sorry that took so long. :)

Answer 21

That's fine, I was enjoying my food.

Answer 22

While I was looking at your comments.