the ratio of length and breadth of a rectangle is 3:1 and its perimeter is 36 cm find the length and breadth of rectangle
Answers
Answered by
27
Heya!
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✴Let the Length of the Rectangle be 3x cm
✴Let the Breadth of the Rectangle be x cm
=> Perimeter = 36 cm < Given >
♦Perimeter of a Rectangle = 2 × ( L + B )
Therefore ,
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2 × ( 3x + x ) = 36
=> 4x = 18
=> x = 18/4
=> x = 4.5 cm
✴Length of Rectangle = 3 × 4.5 = 13.5 cm
✴Breadth of Rectangle = x = 4.5 cm
==========================================================
---------
=======================================================
✴Let the Length of the Rectangle be 3x cm
✴Let the Breadth of the Rectangle be x cm
=> Perimeter = 36 cm < Given >
♦Perimeter of a Rectangle = 2 × ( L + B )
Therefore ,
---------------
2 × ( 3x + x ) = 36
=> 4x = 18
=> x = 18/4
=> x = 4.5 cm
✴Length of Rectangle = 3 × 4.5 = 13.5 cm
✴Breadth of Rectangle = x = 4.5 cm
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redphotographiesco:
but isnt 4x= 18
so I have written that only
i mean 4x=36
no
2 is also there
ohh okk
thanx
so 2 × ( 4x ) = 36
Hope u got it !
^^"
Answered by
12
lenght and breadth = 3:1
let lenght = 3x
and breadth = 1x
perimeter = 36
but peremeter of rectangle = 2(l+b)
so 36 = 2(3x+1x)
8x = 36
x = 36/8
x = 4.5
so b = 4.5
then l = 3×4.5 = 13.5
let lenght = 3x
and breadth = 1x
perimeter = 36
but peremeter of rectangle = 2(l+b)
so 36 = 2(3x+1x)
8x = 36
x = 36/8
x = 4.5
so b = 4.5
then l = 3×4.5 = 13.5
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