Question
What is the value of x if the perimeter of rectangle PQRS is 12 cm?
- 1
- 9
- 4
- 2
Hint:
Perimeter of rectangle = 2 ( l + b)
Where, l = length of rectangle
and b = breadth of rectangle.
The correct answer is: 2
Perimeter of rectangle = 2 ( l + b)
Where, l = length of rectangle = 2x
and b = breadth of rectangle = x
Perimeter = 2 ( 2x + x)
Given perimeter = 12cm
2 ( 2x + x) = 12
6x = 12
x = 2
L = 2x = 2 
2 = 4cm
B = x = 2cm
Thus, the value of x if the perimeter of rectangle PQRS is 12 cm is 2
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