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length times width i think

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There are different formulae for calculating the surface areas of different 3D figures. If the 3D figure is a polyhedron, then each face is a ploygon and you can use the various formulae to calculate the area of each face and then add them together.

There are straightforward equations for ellipsoids, and members of the conic family but other 3D shapes have more complicated formulae.
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Q: How do you find surface area of a 3D figure?
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Related questions

How is the surface area different from area?

Surface area is all the areas for a 3 figure. Area is for only on side of a 3d figure


What is the sum of the area of all the faces of a 3D figure?

It is the total surface area.


What is a formula for surface area of triangle?

K, well there is no surface area of a triangle, because a triangle is a 2s figure. Surface area is for a 3d figure. To find the regular area of a triangle the formula is 1/2 of the base X the height :) gl :P


Is a surface area of a triangle figured from the same formula?

well there is no surface area of a triangle, because a triangle is a 2s figure. Surface area is for a 3d figure. To find the regular area of a triangle the formula is 1/2 of the base X the height :) gl :P


What is the sum of the area of all sides of a 3D figure?

It is the total surface area of the shape.


How do you find the surface area of a 3d trapezoid?

You find the surface area of each of its six faces and add them together.


Can you find an area of a 3D figure?

Yes, if it is bound by plane figures, just add the area of each plane figure. If it has a curved surface, divide it into many small pieces, to approximate the area with small rectangles or triangles, then add them up.


What is the formula to find volume of a trapezoid?

The trapezoid is a plane figure which has surface Area, but no volume but if there was a 3d figure your equation would be. The Surface Area of a trapezoid = ½(b1+b2) x h X Height of figure.


What is the space inside a figure called?

It depends on the type of figure. If it is a 2D figure, then it is called area. If it is a 3D figure, then it is called volume.


How do you find the surface area of a 3D triangle?

Sum the areas of all four faces.


How do you find the surface area of a 3d object?

It depends, but in let's look at a simple example to help you see how. How would you find the surface area of a cube. Find the surface area of one of the faces and since there are six of those, multiply it by 6. For example, a 2x2x2 cube. Each face has a surface area of 4 and there are 6 of them so the total surface area is 24 units. We do the same thing with other 3d objects, but it may be harder to find the surface area of faces. In face, sometimes there are no faces and we may need calculus to find the surface area.


What is the square units in a interior of a 2d figure or the surface of a 3d figure?

A 2D interior will be length times width (a flat shape) as in the area of a floor.A 3D figure would be length times width times depth (a raised shape) as in a box.The units used would depend. A floor would be in feet and inches or metres and centimetres.A 3D figure would be in a similar measurement, but given in cubic units.