What exactly is the surface area, and can you explain it so I can find out what to do even if I don't know the theorems.
2007-05-21 14:29:00 · 9 answers · asked by Phonix 2 in Science & Mathematics ➔ Mathematics
Surface area includes the sides and the base or bases. For prisms and cylinders, SA = perimter(height) + area of 2 bases.
For pyramids and cones; SA = 1/2 perimter(slant height) + area of the 1 base.
2007-05-21 14:32:53 · answer #1 · answered by richardwptljc 6 · 0⤊ 0⤋
Surface area is basically the area on a surface of a 3-D object. The suface area of a cube would be length x width, the standard area formula for a square or rectangle, times 6, there being 6 sides.
2007-05-21 14:34:27 · answer #2 · answered by Austin 2 · 0⤊ 0⤋
Surface area is simply the area of all the surfaces of a solid. Think of a brick, for example. The brick has six faces. The sum of the areas of these six faces is the total surface area of the brick. Think of an orange that is a perfect sphere and has a peel that is one atom thick. The peel would be the surface area of the orange.
Remember that area has only two dimensions. It has no thickness. When we talk about the surface are of a lake we are assuming the lake is perfectly flat and we are only wanting to know the area of the surface of the lake. We don't care how deep it is.
2007-05-21 14:53:10 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
Basically, surface area is kind of like the perimeter of a three-dimensional object. To find perimeter in 2D, you just add up all the lengths of the sides, right? Well to find surface area, you just add up all the areas of all the sides. The trick is just figuring out which area formula to use and making sure you count EVERY side! So a cube will have 6 squares, a rectangular box will have probably six rectangles, a pyramid will have triangles (sides) and probably either a square or rectangle (base), etc.
2007-05-21 14:35:57 · answer #4 · answered by Anonymous · 0⤊ 0⤋
u find the total areas of each surface and add them all together
2007-05-21 14:35:54 · answer #5 · answered by penguins.are.koo 4 · 0⤊ 0⤋
suface area is the area around the surface of an object
2007-05-21 14:38:53 · answer #6 · answered by Beatrice L 1 · 0⤊ 0⤋
area of a piece (sector)= the attitude of the international/ 360 x 2pie radius the finished floor are of a cone is= pie x radius x length + pie x radius(sq.) The curved floor area of a cone= pie x length x radius Curved floor area of a cylinder= 2 x pie x radius x height entire floor area of a cylinder= 2 x pie x radius x height + 2 x pie x radius (sq.) there's no formula for the exterior are of a pyramid. basically the quantity os a pyramid is calculated.
2016-12-11 16:33:22 · answer #7 · answered by ? 4 · 0⤊ 0⤋
surface area of what
square/rectange= length times width times height
2007-05-21 14:38:30 · answer #8 · answered by andrea c 4 · 0⤊ 0⤋
you find the area of all sides and add them together
2007-05-21 14:32:49 · answer #9 · answered by Anonymous · 0⤊ 0⤋