The perimeter of a rectangle is 450 km .If its breadth iis 90km.Find the area of the forest
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perimeter of rectangle=450
450=2×(|+b )
450=2×(l+ 90)
2×( | + 90) =450
|+ 90 = 450÷2
|+90= 225
|=225 -90
|=135
area of rectangle=|×b
=135 × 90
=12150 km square
450=2×(|+b )
450=2×(l+ 90)
2×( | + 90) =450
|+ 90 = 450÷2
|+90= 225
|=225 -90
|=135
area of rectangle=|×b
=135 × 90
=12150 km square
nethranithu:
Gud
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