![]() ![]() We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area. Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. 2 - Calculate the area of the lateral surface of the tool. Therefore, the surface area of a cone is equal to the sum of the circular base area and the lateral surface area, calculated by multiplying half of the circumference by the slant height. A manufacturer intends to use the least amount of material to make a hollow right circular cone of radius r cm and vertical height h cm. Is the surface area of a cone the sum of areas of a circle and sector of a circle?Ĭones are similar to pyramids, except they have a circular base instead of a polygonal base. Total surface area is the sum of this circular base and curved surface areas. ![]() The area of the slanted part gives you the curved surface area. Answers for volume problems should always be in cubic units. In order to calculate the curved surface area and total surface area of a cone, we divide it into a circular base and the top slanted part. The slant of a right circle cone can be figured out using the Pythagorean Theorem if you have the height and the radius. Now, we have got the complete detailed explanation and answer for everyone, who is interested! ![]() This is a question our experts keep getting from time to time. ![]()
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