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equation for lateral surface area. Where R radius of the lower base r radius of the upper base L length of lateral side Derivation of Formula Lateral area of right circular cone is the difference of the areas of sectors of a circle of radii L 1 and L 2 and common central angle th. A 2 p r h.
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See the figure below. The surface area of the cube is 150 cm 2. In this tutorial youll see how to use the dimensions of a rectangular prism to find the lateral area.
Then find the base area by multiplying the base by the height of the triangle and dividing by 2.
Then write a formula for the total surface of a prism. Thus the lateral surface area of a sphere is 4p r2 where r. Again there are two of them so their combined surface area is 2ab. Length 2 lb bh hl.
