Find area of a rhombus whose perimeter is 80m and one of its diagonals is 24m
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side =perimeter /4=80/4=20m
d1=24
d1/2=24/2=12m
so d2/2= root of (20^2-12^2)=16cm
area=1/2×d1×d2=24×16=384metre square
d1=24
d1/2=24/2=12m
so d2/2= root of (20^2-12^2)=16cm
area=1/2×d1×d2=24×16=384metre square
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