The perimeter of a square is double that of a rectangle. If perimeter of the square is 120 m and length and breadth of the rectangle are in the ratio 3:2 , find the bredth of the rectangle.
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Answered by
122
Let the length be 3x
and breadth be 2x
Perimeter of square = 2 perimeter of rectangle
120 = 2 [ 2 ( l + b ) ]
60 = 2 ( 3x + 2x )
30 = 5x
6 = X
Breadth :- 2x
= 2 × 6
= 12cm
and breadth be 2x
Perimeter of square = 2 perimeter of rectangle
120 = 2 [ 2 ( l + b ) ]
60 = 2 ( 3x + 2x )
30 = 5x
6 = X
Breadth :- 2x
= 2 × 6
= 12cm
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Answered by
35
the perimeter of square=2× perimeter of rectangle
p=2p
120=2p
p=120/2=60
length and breadth of a triangle are in ratio 3:2
perimeter of rectangle=2(l+b)
60m=2(3x+2x)
60m=2(5x)
60/2=5x
30m=5x
x=30/5=6m
length of rectangle=3x=3×6m=18m
breadth of rectangle=2x=2×6m=12m
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