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If a = 11 cm, b = 27 cm, c = 15 cm, and d = 20 cm, what is the area of the poster?

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Answer:

To answer this question, you need to find the area of the trapezoid that forms the poster. A trapezoid is a quadrilateral with one pair of parallel sides. The area of a trapezoid is given by the formula:

Area = (1/2) * (base1 + base2) * height

where base1 and base2 are the lengths of the parallel sides and height is the perpendicular distance between them.

In this case, the parallel sides are a and c, and the height is d. So, plugging in the given values, we get:

Area = (1/2) * (11 + 15) * 20

Area = (1/2) * 26 * 20

Area = 13 * 20

Area = 260 cm^2

Therefore, the area of the poster is 260 cm^2.

Explanation:

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