the length and breadth of a rectangular field are in ratio 7:5 if it's perimeter is 480 m find its dimensions
Answers
Answered by
109
let l=7x
let b=5x
perimeter =2(l+b)
480 =2(7x+5x)
480=2(12x)
480÷2=12x
240=12x
240 ÷12=x
20=x
therefore , length=7x=7(20)=140
breadth=5x=5(20)=100
let b=5x
perimeter =2(l+b)
480 =2(7x+5x)
480=2(12x)
480÷2=12x
240=12x
240 ÷12=x
20=x
therefore , length=7x=7(20)=140
breadth=5x=5(20)=100
Answered by
3
Answer:
length 140 m breadth 100 m
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