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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.
How does knowing the area of two-dimensional figures help you find the surface area of a three-dimensional shape?
The surface area of the 3-D figure will be the total of the areas of the 2-D figures.
Can a curved surface have any straight lines like a semicircle for example?
if you are drawing a circle with the help of circle tool in computer with paint, you will find that if you zoom it,the circle is made with small lines.
How does surface area work?
It would help if the question was less obscure. What do you mean by "work"? How the surface area affects chemical processes (for example the surface area of catalysts), or diffusion, or surface areas and friction?
How does your body adopt surface area to volume ratio to help exchange gases?
The respiration system adopts to the surface area to volume ratio to help the exchange of gases.
