Question

The length of a rectangle is thrice its breadth. If the perimeter of the rectangle is 1m 28 cm, find the length and breadth of the rectangle

Answer 1

Answer:

length 48 cm

breadth =16cm

Step-by-step explanation:

let breadth of rectangle = b

length = 3b ( according to question)

perimeter = 1m 28 cm. =128 cm

2(l+b)=128 cm

2(3b+b)=128

(4b)=128/2

4b =64

b=64/4.

b=16 cm

we know , l = 3b ( put value of b)

l= 3(16).

l=48 cm