2007-01-18 03:56:15 · 5 answers · asked by ☺ Joel ☺ 1 in Science & Mathematics ➔ Mathematics
Just find the area of each triangular surface, then find the area of the base, then add them up.
2007-01-18 04:00:41 · answer #1 · answered by hayharbr 7 · 0⤊ 0⤋
Excellent question Joel. Since there are three equal sides to the pyramid and each side is a triangle, you have to solve for the area of the triangle which is 1/2 the base of the triangle times its height which is the line from the top of the triangle and perpendicular to the base. You then multiply the result by three and you have the surface area of the pyramid.
2007-01-18 12:02:45 · answer #2 · answered by 1ofSelby's 6 · 0⤊ 0⤋
add the area of the base and the area of all the sides
unless the base is what it is sitting on and therfore not considered to be on the surface like the pyramid at giza
if this is for a math class then DO add the base area
or you will probably get it wrong.
2007-01-18 12:19:49 · answer #3 · answered by rollerskater 3 · 0⤊ 0⤋
Add the area of the base to the sum of the areas of all of the triangular faces. The areas of the triangular faces will have different formulas for different shaped bases.
2007-01-18 11:59:46 · answer #4 · answered by Ilich 2 · 0⤊ 0⤋
just add all the aurface areas of the pyramid, which is 4 sides of the triangle
2007-01-18 12:00:48 · answer #5 · answered by wind_liao 2 · 0⤊ 0⤋