Question 1018610
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The area of a parallelogram is equal to


S = {{{a*b*sin(alpha)}}}, 


where a and b are the measures of its two adjacent/consecutive sides and {{{alpha}}} is the angle between them.


See the lesson <A HREF=http://www.algebra.com/algebra/homework/Surface-area/Area-of-a-parallelogram.lesson>Area of a parallelogram</A> in this site.