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c What is the area of the trapezoid, lengths of whose parallel sides are 9 cm, 12 cm, and whose height is 6 cm? c

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c Area of a trapezoid is 15 cm^{2} and the distance between the parallel sides is 6 cm. If one of the parallel sides is 3 cm, then what is the length of the other parallel side? c

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c A trapezoid has an area of 50 cm^{2}. The two parallel sides of the trapezoid measure 10 cm and 15 cm. What is the height of the trapezoid? c

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c A trapezoid has area of 110 cm^{2}. One of the parallel sides is 16 cm and the height is 10 cm. What is the measure of the other parallel side? c

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c What is the area of the trapezoid ABDE, if it is constructed by three congruent triangles, each of area 6 cm^{2}? c

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c One of the parallel sides of a trapezoid is three times as long as the other and the height of the trapezoid is 8 cm. What are the lengths of the parallel sides if the area of the trapezoid is 64 cm^{2}? c

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c What is the area of the trapezoid PQST, if it is formed with 3 equilateral triangles with an area of 10 cm^{2} each? c

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c What are the lengths of the parallel sides of a trapezoid, if its area is 18 cm^{2}, height is 4 cm and the length of its shorter side is 5 cm shorter than its longer side? c

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c What is the area of the trapezoid, lengths of whose parallel sides are 12 cm, 16 cm, and whose height is 8 cm? c

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c What is the area of the trapezoid, lengths of whose parallel sides are 15 cm, 20 cm, and whose height is 10 cm? c

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c Find the area of the colored region in the figure. c

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c A trapezoid has area of 60 cm^{2}. One of the parallel sides is 11 cm and the height is 8 cm. What is the measure of the other parallel side? c

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c A trapezoid has an area of 75 cm^{2}. The two parallel sides of the trapezoid measure 10 cm and 15 cm. What is the height of the trapezoid? c

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c Find the area of the colored region of the trapezoid ABEF, if ACDF is a square. c

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c Area of a trapezoid is 36 cm^{2} and the distance between the parallel sides is 8 cm. If one of the parallel sides is 4 cm, then what is the length of the other parallel side? c

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c Find the area of the colored region in the figure. c

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c What is the area of the trapezoid ABDE, if it is constructed by three congruent triangles, each of area 20 cm^{2}? c

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c The trapezoid PQRS is formed by combining the two triangles ABC and DEF. What is the perimeter of the trapezoid PQRS? c

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c Find the area of the colored region in the figure. c

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c Find the area of the trapezoid PQRS, if the distance between any two adjacent points is 1 cm. c

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c What is the height of the trapezoid, if the area of the trapezoid is 36 ft^{2}? c

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c One of the parallel sides of a trapezoid is three times as long as the other and the height of the trapezoid is 6 cm. What are the lengths of the parallel sides if the area of the trapezoid is 84 cm^{2}? c

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c What is the area of the colored region in the figure, if the area of rectangle ABCD is 48 m^{2}? c

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c What is the area of the polygon ABCDE, if ∠ B and ∠ E are right angles and ED is parallel to AC? c

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c What is the area of the trapezoid PQST, if it is formed with 3 equilateral triangles with an area of 30 cm^{2} each? c

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c What is the perimeter of the trapezoid LMNO, if it is formed by the parallelogram ABCD and the triangle PQR? c

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c What are the lengths of the parallel sides of a trapezoid, if its area is 64 cm^{2}, height is 8 cm and the length of its shorter side is 8 cm shorter than its longer side? c

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