Question

please answer this question with explantation...​

Answer 1

length is 30 and breadth is 10

Answer 2

Answer:

Step-by-step explanation:

Breadth = b

length = l

perimetre = 2(l+b)+ 80

b = 1/3l

perimetre = 2(l+1/3l)

                 = 3l+l/3

                 = 4l/3

4l/3 = 80

4l = 240

l = 240/4

l=60

b= 1/3 of  by 60

b = 20

hence, length is 60 cm and breadth is 20cm

hope it was useful

BHARATH