Question

Surface area of pyramid and point perspective questions?

Answer 1

Two Geometry questions.

Answer 2

what are the dimensions of the triangles that make up the sloping faces of the pyramid?

Answer 3

h: 16
b: 10

Answer 4

area of that triangle = ?

Answer 5

If those are right, then the area for all the triangles are 320?

Answer 6

6 of them at 1/2 * 10 * 16 each

Answer 7

oh, I just though of a square pyramid. So, 480 for all the triangles.

Answer 8

yes. now how will you find the area of the base?

Answer 9

\[\frac{ 3\sqrt{3} }{ 2 }a ^{2}\]=259.81

Answer 10

259.81+480=739.81=780

Answer 11

*740

Answer 12

Do you know about #2.

Answer 13

okay, that works. I broke it down into 6 triangles with base 10 and height \(5\sqrt{3}\) so area \( = 150\sqrt{3}\)

yes, 740 is correct

Answer 14

how many vanishing points do you see? I think that is one-point perspective, but I'm not wagering any large sums on it :-)

Answer 15

I don't know what vanishing points are, but I would probably take your word on it.

Answer 16

some reading material (with pictures) https://en.wikipedia.org/wiki/One-point_perspective#One-point_perspective

Answer 17

Ok, then it does seem to be one-point perspective.

Answer 18

Thanks for all the help again. :)

Answer 19

You bet. Are you up late, or early? :-)

Answer 20

I'm up late (in California), and I think I'm going to call it a night.

Answer 21

Usually pretty late. I am usually up 4:00 P.M. - 8:00 A.M. in SC

Answer 22

And, goodnight.