how do you solve surface area????? plz help me i dunno no how to solve it!!!! soooo yeah thnx pplz!!
2007-03-11 16:38:55 · 2 answers · asked by Muh-Kay-Luh cArTeR :]] 1 in Science & Mathematics ➔ Mathematics
That depends on the shape of the 3-dimensional figure.
Do you want the surface area of a cube? Then it's just
A = 6x^2
Do you want the surface area of a cylinder?
A = 2pi(r^2) + 2pi(r)(h)
Do you want the surface area of a sphere?
A = 4pi r^2
2007-03-11 16:42:45 · answer #1 · answered by Puggy 7 · 0⤊ 0⤋
I'm guessing that you dont know calculus, which would make this easy. If the surface is a known "standard" surface, you can look up the surface area in a table. See my reference for one example of such a table. Otherwise, you cover the surface as accurately as you can with smaller shapes for which you do know the area, such as triangles or rectangles. The you add up the areas of the small shapes. This is how you do it.
2007-03-11 23:46:20 · answer #2 · answered by heartsensei 4 · 0⤊ 0⤋