i know the regular cross product gives the area of parallelogram, but how do i find the area of trapezoid?
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Originally Posted by MottoV2 i know the regular cross product gives the area of parallelogram, but how do i find the area of trapezoid? You can partition any trapezoid into two triangles. The area of any triangle is one-half the corresponding parallelogram: , where are adjacent sides.
so that means the area of trapezoid is same as the area of parallelogram? edit: oh wait, are they divided into identical triangles? edit again: k i got it :-D. thx
Last edited by MottoV2; May 2nd 2009 at 10:15 AM.
They don't have to necessarily be equal.
Originally Posted by MottoV2 so that means the area of trapezoid is same as the area of parallelogram? edit: oh wait, are they divided into identical triangles? No. There are most likely two different triangles. Find the area of each and add together.
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