Question

the length of a rectangle is three side three times of its breadth find find if perimeter is find if perimeter is 126 ​

Answer 1

Answer:

L = 3B

Perimeter = 2(L+B)

126 = 2(3B+B)

63 = 4B

B = 15.75

L = 3×15.75

L = 47.25

Length = 47.25 cm

Breadth = 15.75 cm

Answer 2

Answer:

Correct question:-

1. Ratio of sides of rectangle is 3:4 . If the perimeter of this rectangle is 126m, find the width and length.

Given:-

• Ratio of sides of rectangle = 3:4
• Perimeter of rectangle = 126m

To find,

• The width and length of the rectangle

Required answer:-

• 63

Solution:-

 Perimeter is the sum of all the sides

• P = $\rm \frac{2L}{2} + \frac{2W}{2} =\frac{126m}{2}$    
• L + W = 63
• 3:4 = 7

If L + W = 7 then, L = 3, W = 4

• $\rm 3\times 9: 4 \times 9 = 7 \times 9$
• 27 + 36 = 63