Sum the areas of all four faces.
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.
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
Surface area is all the areas for a 3 figure. Area is for only on side of a 3d figure
A 2D shape is flat and only has a surface area whereas a 3D shape is an object that has surface area and volume.
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.
Trapezoid is 3D. The shadow of this shape is called Trapezium.
Sum the areas of all four faces.
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.
An 3d trapezoid
That will depend on what they are but in general 3D shapes have surface area and volume whereas 2D shapes have only surface area.
on a 3D object to find the surface is to look on all flat surfaces. yourwelcome
3D trapezoid
least volume and most surface area is 3D triangle
Area is usually pertaining to the area of a 2d object but surface is 3d object
2d
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