perimeter of a rectangle is 216 M and its length is 40 m find the breadth and area
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Let breadth be x
perimeter=216m
2(l+b)=216m
2(40+x)=216m
80+2x=216m
2x=(216-80)m
2x=136m
x=136÷2m
=68m
Hence,breadth =x
=68m
area of rectangle =L×b
=(40×68)m2
=2720m2
perimeter=216m
2(l+b)=216m
2(40+x)=216m
80+2x=216m
2x=(216-80)m
2x=136m
x=136÷2m
=68m
Hence,breadth =x
=68m
area of rectangle =L×b
=(40×68)m2
=2720m2
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