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Are you looking for volume?
im just lost
no surface area
one face is equal to base times height divided by 2.
to find the height of the face; you use the fact that 8 and 3 are the legs of another triangle with the hypotenuse of it being your surce height...does that make sense?
SA would be Length x Width
yessssssss but this is on a pyrimid
A square pyramid is just a square with 4 triangles on top of it. So take it step by step.
A square has area side^2.
A triangle has area (1/2)*base*height.
There's 4 triangles, all with the same area.
Add the (area of the square) + 4*(area of triangle)
sqrt(64 + 9) = sqrt(73)
the surface area of the entire pyramid, not counting the bottom is:
6sqrt(73)/2 times 4
u guys r awsome and smart ... im not thx for u guys help
drop a perpendicular down the center and you get 8 for the height of the pyramid.
measure over 3 from there to get a triangle of:
8^2 + 3^2 = r^2
and r is the "height" you use to figure for the face triangles.
r = sqrt(64 +9) = sqrt(73)
sqrt(73) times 6 for the base divided by 2 gives the area of 1 face.
times that by 4 to get all the faces.
include the bottom if need be :) 6*6 = 36