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Published byLauren Clarke Modified over 8 years ago

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Lesson 7-1 Area of Parallelograms, Triangles, and Trapezoids

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Area Formulas Parallelogram – base times height A = bh. Triangle – 1/2 base times height Trapezoid - 1/2 height times base one plus 1/2 height times base two.

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Find the area of the parallelogram. 7 cm 3 cm 2 cm

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Find the area of the triangle. 7 in 4 in 22 in

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Find the area of the trapezoid. 4.5 yd 5 yd 3.4 yd1 yd

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A farmer plans to paint the triangular side of a large shed, shown below. Find the area to be painted. Assume that no part of the window needs to be painted. If a gallon of paint covers 350 square feet, how many gallons should the farmer buy? 25 ft 31 ft 3 ft

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