The length of the rectangular field is 90 m, and its perimeter is 240 m. Calculate the breadth of the rectangular field.
A: 90 m
B: 320 m
C: 240
D: 30 m
Given: Perimeter = 240 m and length, l = 90 m.
To find the Breadth (b).
As we know, rectangle’s perimeter = 2 (l + b)
Using the given values, we can derive the following:
2(l + b) = 240 m
Now, bring 2 to the right side of the equation,
Hence, we get
l + b = 120 m
Now, substitute l = 90 m
90+ b = 120 m
On simplifying the above equation, we get
b = 120 – 90 m
b = 30 m
Hence, the breadth of the rectangular field is 30 m.
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