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I need the lateral surface area

Please help I need the lateral surface area-example-1

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Answer:


la = 588 \: \: {cm}^(2)

Explanation:

Lateral area for trapezoidal prism:

- Is the sum of all the areas excluding the base area.

la - Lateral area


a = 20\\ b = 10 \\ c = 10 \\ d = 9 \\ l = 12


la = al + \: bl + \: cl + \: dl


la = l(a + \: b + \: c + \: d)


la = 12(20 + 10 + 10 + 9)


la = 588 \: \: {cm}^(2)

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