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09-11-2017
Mathematics

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Area of a trapezoid half the product of the height and the sum of the lengths of the parallel sides

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dannielle dannielle

09-11-2017

Area of the trapezoid is the sum of the area of the rectangle and the right triangles that are next to it.
Area of the trapezoid= l*h + h*x/2+h*[L-l-x)]/2=l*h+h*x/2+h*L/2-h*l/2-h*x/2=
= h*L/2+h*l-h*l/2=h*L/2+h*l/2=h*(L+l)/2

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