The perimeter of a rectangle is 160 cm. The rectangle is 4 times longer than wide. What are the length and width of this rectangle?
A) l=65
Answers
Answered by
0
Answer:
l=40cm and b=40cm
Step-by-step explanation
perimeter of rectangle = 2(l+b)
2(l+b)=160
l+b=80
b=80-l
rectangle=4(b)
2(l+b)= 4(80-l)
2(l+b)=320-4l
2l+2b=320-4l
2l+2(80-l)=320-4l
160-2l=320-6l
-160=-4l
160=4l
l=40cm
b=80-40
b=40cm
Answered by
0
Answer:
length = 40cm
and breadth=120cm
Step-by-step explanation:
let length be x
then, given that 4x=160
so, x=160/4= 40 cm
and breadth=160-40=120
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