Geometry question concerning triangular prism formulas here, NEED HELP, ASAP!!?
What are the formulas for finding the length, height and slant height of a triangular prism given the surface area?.. Please help me!
- Anonymous1 decade agoFavorite Answer
Triangular Prisms don't have slant height. Do you mean a triangular pyramid?
Triangular Prism Formula
Surface Area= 2b + Ph
(b is the area of the base P is the perimeter of the base)
Triangular Pyramid Formula
Surface Area = [Base Area] + 1/2 × Perimeter × [Side Length]
SA = B + 1/2 P L (cursive l)
B = l x h
If you know the SA you can solve for the other variables.
(2SA - lh) / P = L (slant height)
h= (SA - 1/2 P L(slant height)) / l
l = (SA - 1/2 P L (slant height)) / hSource(s): http://math.about.com/library/blmeasurement.htm http://www.mathsisfun.com/geometry/triangular-pyra...
- Anonymous5 years ago
Formula to find what? if it is volume you multiply the area of the triangle by the height of the prism.