Question

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Answer 1

Answer:

perimeter formula length into breadth now solve it

Answer 2

Question given :

• The length of a rectangle is 3 cm more than its breadth and it's perimeter is 50 cm . What is the sum of its length and breadth and find the length and breadth of the rectangle .

Given :

• The length of a rectangle is 3 cm more tahn its breadth .
• It's perimeter is 50 cm

To find :

• What is the sum of its length and breadth ?
• The length and breadth of the rectangle

Assume :

• The breadth of the rectangle be x

Formula used :

• Perimeter = 2 ( length + breadth )

Solution :

• As we have assumed the breadth as x then the length would be x + 3 cm

Substitute the respective values in the perimeter formula ,

= Perimeter = 2 ( x + 3 + x )

= 50 cm = 2 ( 2x + 3 )

= $\sf\dfrac{50}{2}$ = 2x + 3

= 25 cm = 2x + 3

= 25 - 3 = 2x

= 22 = 2x

= $\sf\dfrac{22}{2}$ = x

= x = 11 cm

• Breadth is 11 cm
• Length is 11 + 3 = 14 cm

b) The sum of length and breadth ,

= 11 + 14 = 25 cm