Question

The perimeter of rectangle is pqrs 80cms pq:rs =5:3 find the length of pq

Answer 1

$perimeter \: of \: rectangle \: is \: 2(l + b) \\ given \: pq \div rs = 5 \div 3 \\ let \: pq \: equals \: to \: 5rs \div 3 \\ 80 = 2(5rs \div 3 + rs) \\ rs = 15 \\ pq = 25$

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