The sidesthe sides of a traingular prism are 12,16,20 cmsits height is 15cms the lateral surface area
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The lateral surface area of a prism is the sum of the areas of its lateral faces.
BY USING HERONS FORMULA
You can find area of triangle with dimensions as 12 units, 16 units, 20 units
Then multiplying it by 2 to get the answer
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