The adjacent sides of a parallelogram measures 35m,20m and the measure of one of the diagonal is 42m. find the area of parallelogram.
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Area of parallelogram
= Area of 2 equal triangles
1) Area of triangle
vs(s-a)(s-b)(s-c)
s = a + b +c. / 2
=35+20+42/2=97/2=48.5cm
A= v48.5 (48.5-35) (48.5-20) (48.5-42)
V48.5x 13.5x28.5x6.5=
v121292 =348cm2
Area of parallelogram=348x2
= 696cm2. Ans
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