The perimeter of a rectangle is 40 m and breadth is 9m . Find its length
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3
Given: breadth=9m
perimeter=40m
length=?
perimeter=2(length+breadth)
40=2(length+9)
40/2=length+9
20=length+9
length=20-9
length=11
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Answered by
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Answer:
Length of rectangle = 11 m
Step-by-step explanation:
Perimeter of rectangle = 2(l + b)
Breadth (b) of rectangle = 9 m
To find Length (l) of rectangle
According to question ,
Perimeter of rectangle = 40 m
= 2(l + b) = 40
= 2(l + b) = 2(20)
= l + b = 20
= l + 9 = 20
= l = 20 - 9
= l = 11
Therefore , length of rectangle = 11 m
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