7. The length of a rectangular field is three times its breadth. If the breadth of the rectangle is 5 one upon two
metres, find the perimeter of the rectangle.
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Step-by-step explanation:
length of rectangle=?
breath of rectangle=5
5×3
length of rectangle=15
perimeter of rectangle=2(l+b)
= 2×15+5
=2+20
=22sq
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