the ratio of length and breadth of a rectangle is 12:17 respectively and perimeter is 540 cm. find the area.
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Let the length and breadth be 12x cm and 17x cm
According to the question,
perimeter =2 (L+B)
540 cm =2 (12x+17x )
540 cm=2×29x
540 cm=58x
540 cm/58=X
9.31 = X
Hence ,Length =12x cm=12×9.31 cm=111.72 cm and breadth =17x cm=17×9.31 cm=158.27 cm
Area of rectangle =(L×B)
=(111.72×158.27) cm^2
=17681.92
According to the question,
perimeter =2 (L+B)
540 cm =2 (12x+17x )
540 cm=2×29x
540 cm=58x
540 cm/58=X
9.31 = X
Hence ,Length =12x cm=12×9.31 cm=111.72 cm and breadth =17x cm=17×9.31 cm=158.27 cm
Area of rectangle =(L×B)
=(111.72×158.27) cm^2
=17681.92
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