9) The sides of a parallelogram are 100 m each and length of the longest diagonal is 160m.
The area of parallelogram is:
a. 9600 sq.m
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Step-by-step explanation:
Length of diagonal, BD=2*[100^2-(160/2)^2^0.5
=120cm
Area of rhombus=AC*BD/2=160*120/2
=9600 sq cm
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