Question

the width of a rectangle is three fourth of its length find the dimensions of a rectangle if its perimeter is 28

Answer 1

let, breadth to be x
According to question
______________
length=3/4x
perimeter=28cm
2(l+b)=28cm
2(x+3x/4)=28cm
x+3x/4=28/2=14cm
4x+3x/4=14cm
7x/4=14cm
7x=14×4cm
7x=56cm
x=56/7cm
x=8cm


length=3/4x
=3/4×8
=6cm
width =x
=8cm
hope it helps you.
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Answer 2

here is your answer hope it will help you

let length of rectangle=x
width of rectangle=3/4x
according to question
perimeter=28
2(l+b)=28
x+3/4x=28/2
x+3/4x=14
4x+3x/4=14
7x=14*3
x=14*3/7
x=6
dimensions=6,4.5