find the length of the rectangle whose perimeter is 400 CM who breadth is 120 CM
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Answered by
6
Answer:
Given
Perimeter of the rectangle = 400 cm
Length ( l ) = ?
Breadth ( b ) = 120 cm
Perimeter of rectangle = 2 ( l + b ) = 400
===> 2 ( l + 120 ) = 400
===> l + 120 = 400 / 2
===> l + 120 = 200
===> l = 200 - 120
===> l = 80 cm² .
The length of the rectangle is 80 cm² .
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Answered by
5
Answer:
80 cm
Step-by-step explanation:
P= 400cm
b=120cm
P= 2(l+b)
400=2(l+120)
400=2l + 240
400-240= 2l
160= 2l
l= 160÷2
l= 80cm
Hence, length of the rectangle = 80 cm.
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