the length of a rectangle is 8 cm more than its width . If the perimeter of the rectangle is 44cm . Find the length and breadth of the rectangle
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Answered by
4
Let the breadth be x
let the length be x+8
perimeter of rectangle=2 (length +breadth)
so, 2 (x+x+8)=44cm
=2 (2x+8)=44
=4x + 16=44
=4x= 44-16
=4x= 28
=x = 28÷4
=x= 7
therefore,
breadth is 7 (x)
length is 7+8 (x+8)
=15
Hope it helps
let the length be x+8
perimeter of rectangle=2 (length +breadth)
so, 2 (x+x+8)=44cm
=2 (2x+8)=44
=4x + 16=44
=4x= 44-16
=4x= 28
=x = 28÷4
=x= 7
therefore,
breadth is 7 (x)
length is 7+8 (x+8)
=15
Hope it helps
sony2005:
it's ok
Answered by
6
Given:-
- Perimeter of the rectangle is 44cm.
- Length of the rectangle is 8cm.
To find:-
- Find the length and breadth of the rectangle....?
Solutions:-
- Let the width be x cm.
- Let the length be (x - 8)cm.
- Perimeter of rectangle = 44cm.
Therefore,
The perimeter of rectangle => 2(l + w)
=> 44 = 2(x + x + 8)
=> 44 = 2(2x + 8)
=> 44/2 = 2x + 8
=> 22 = 2x + 8
=> 22 - 8 = 2x
=> 14 = 2x
=> x = 14/2
=> x = 7
So,
- Width => 7cm
- Length => x + 8 = 7 + 8 = 15cm
Hence, the width of the rectangle is 7cm. And the length of the rectangle is 15cm.
Some Important:-
- Area of rectangle => l × b
- Perimeter of rectangle => 2(l + w)
- Diagonal of rectangle => √l² + w²
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