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musiclover10045

The bottom is 24 x 30 = 720

There are two slanted sides which are 13 x 30 = 390 x 2 = 780

There are two triangles.

Area of a triangle = 1/2 x base x height: 1/2 x 24 x 5 = 60, 60 x 2 = 120

Total surface area = 720 + 780 + 120 = 1,620 square inches.

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