Mathematics
Grade-4-
Easy
Question
If the perimeter of a rectangle is 156 inches & width is 36 inches. Then the length = ___________.
- 40 inches
- 41 inches
- 42 inches
- 44 inches
Hint:
The perimeter of a rectangle is the sum of the all the length and width of the rectangle , i.e., 
The correct answer is: 42 inches
The perimeter of a rectangle is the sum of the all the length and width of the rectangle.
Step1: The perimeter of square of length 
and width 
is given by.
=>.
Step2: Here we are given the values of Perimeter and width respectively as:
Perimeter = 
width = 
Step3: Now we will calculate the length.
length = 
, where p is the perimeter and B is the width of the rectangle.
length = 
=>
.
So, the length of the given rectangle is .
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