Eric J.

asked • 05/06/23

I drew a rectangle like the question asked. If the rectangle's length is the same length as the midline of the trapezoid, then I have succeeded. But I don't know how to prove that.

615.The area of a trapezoid can be found by multiplying its altitude (the distance between the parallel sides) by the length of its midline. Explain why this formula works. One approach is to find a suitable rectangle that has the same area as the trapezoid.

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Inactive Tutor answered • 05/06/23

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It should be added that each triangle which is rotated is congruent to the triangle it rotates on to because all angles are equal and the heights are equal, i.e. h/2
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05/06/23

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