Two adjacent sides of a parallelogram measure 5cm and 3.5cm respectively. One of its diagonals measures 6.5cm .find area of parallelogram
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iLet us take case 5, 6.5 and 3.5 is the triangle.This is half the area of the parallelogram.
Area of triangle 2s= 5+6.5 +3.5= 15
s= 7.5
s-a=2.5
s-b=1
s-c=4
s(s-a)(s-b)(s-c)= 75
Area of triangle = root 75
Area of parallelogram= 2 root 75= 17.321cm^2
Area of triangle 2s= 5+6.5 +3.5= 15
s= 7.5
s-a=2.5
s-b=1
s-c=4
s(s-a)(s-b)(s-c)= 75
Area of triangle = root 75
Area of parallelogram= 2 root 75= 17.321cm^2
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