Question

the length of rectangle is 2cm more than twice it's breadth. perimeter of rectangle is 82cm. find its length and breadth ​

Answer 1

According to question

suppose length of rectangle 2x+2 cm

breadth =Xcm

perimeter of rectangle =82cm

2*(l +b)=82cm

2*(3x+2)=82cm

6x+4=82cm

6x=78cm

x=13cm

length of rectangle =2×13+2

=28 cm

breadth of the rectangle =13 cm

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Answer 2

Given : the length of a rectangle is 2cm more than twice its breadth . perimeter of the rectangle is 82 cm

To Find :  length and breadth

Solution:

length of a rectangle is 2cm more than twice its breadth

Let say Breadth = B cm

Length = 2B + 2   cm

Perimeter of rectangle = 2 ( Length + Breadth)

=> Perimeter = 2  (2B + 2 + B)

=> Perimeter = 2  (3B + 2)

Perimeter = 6B + 4  cm

perimeter of the rectangle is 28 cm

=> 6B + 4 = 82

=> 6B = 78

=> B = 13

Length = 2B + 2 = 2 * 13 + 2  = 28

Breadth = 13 cm

Length = 28 cm

Length = 28 cm  and Breadth = 13 cm

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