Math, asked by something01, 2 months ago

The length of a rectangle is 5cm more than its breadth. If the length is decreased by 3 cm and breadth is decreased by 2 cm, then area of the new rectangle is same as the area of the original rectangle. Find the dimensions of the original rectangle.
Plz give proper answer Im struggling from when
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Answers

Answered by architagogoi442
0

Answer:

Answer: If the length is decreased by 3 cm and breadth increasd by 2cm the perimeter is 72.

Step-by-step explanation:

I hope it helps you.

Answered by QUEENSOFQUEENS
1

Step-by-step explanation:

Let the breadth of a rectangle be x cm.

Therefore, length will be 2x−5 cm.

Now, length is decreased by 5 cm i.e., 2x−5−5=2x−10 cm and breadth is increased by 2 cm, i.e., x+2 cm.

Also given, perimeter =74=2(l+b) cm.

Therefore, 2[2x−10+x+2]=74

⇒2[3x−8]=74

⇒6x−16=74

⇒6x=74+16

⇒6x=90

⇒x=15

Now, length will be =2x−5=2(15)−5=30−5=25 cm.

Therefore, length and breadth of a rectangle are 25 cm and 15 cm respectively.

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