Question

The perimeter of a rectangle is 42cm and it's length is double it's breadth. find the length and breadth of the rectangle.​

Answer 1

Length= 2× breadth

A/Q

2breadth+ breadth= 42

Breadth= 42/3= 14

Length= 14×2= 28

Answer 2

✠ Given :-

• Perimeter of rectangle = 42 cm
• Length of rectangle is double of it's breadth

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✠ To Find :-

• Length and breadth of the rectangle

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✠ Solution :-

Let :

• Breadth of rectangle = x
• Length of rectangle = 2x

★ Perimeter of rectangle = 2 ( L + B )

→ 42 = 2 ( x + 2x )

→ 42/2 = 3x

→ 21 = 3x

→ x = 21/3

→ x = 7

Therefore :

• Breadth of rectangle = 7 cm
• Length of rectangle = 14 cm