Question

The ratio between the perimeter and the breadth of the rectangle is 5:1 if the area of the rectangle is 216cm² what is the length of the rectangle
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Answer 1

Answer:

Answer: Option B

Solution(By Examveda Team)

2(l+b)b=51⇒2l+2b=5b⇒3b=2lb=23lThen,Area = 216cm2⇒l×b=216⇒l×23l=216⇒l2=324l=18cm

Answer 2

Answer:18cm

Step by step explanation

Perimeter=5:1→2(l+b) = 5/1

2l+2b=5b

2l=3b

b= 2l/3.......(1)

Area=216→lb=216

2l²/3=216

l²=216×3/2

l²=324

l=18

Therefore your ans is 18cm

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