B=.75L
100=sqrt(B^2+L^2)
100=L sqrt(.75^2+1)
100=L sqsrt(9/16+16/16)=L sqrt(25/16)
100=L*5/4
L=80
B=3/4 * 80=60
area=BL
The breadth of a rectangular field is 75% of its length.If the diagonal of the field is 100 m,what is the area of the field ?
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