Question

The breadth of a rectangle is
3/4 of its length. The perimeter of the rectangle is 70cm.Find its length and breadth​

Answer 1

Answer:

length = 20cm

breadth= 15 cm

Step-by-step explanation:

let the length be x , then the breadth = 3/4 * x = 3x/4

perimeter of a rectangle = 2(l+b)

70 = 2(x + 3x/4)

70 = 2(7x/4)

70 = 14x/4

14x= 70*4

14x= 280

x = 280/14

x = 20cm

therefore , length = x = 20cm

breadth = 3x/4 = 3*20/4 = 15 cm

Answer 2

the breath = x

the length = 3/ 4 x

perimeter of rectangle

2(x + 3/4 x) = 70

2x + 6 / 4 x =70

8x + 6 x /4 = 70

14 x / 4 = 70

14x = 280

x = 20 cm

breath = 20 cm

length = 3/4x

3/4x = 3/4(20) = 15 cm

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