Question

The length of a rectangular field is twice its breadth. A girl logged around
covered a distance of 4.5 km. What is the length of the field?​

Answer 1

Answer:

l=1.5km

Step-by-step explanation:

Given : l=2b

  Circumference = 2(l+b) = 4.5 km

                        2(2b + b) = 4.5

                                   2(3b) = 4.5

                                   2b = 1.5

                                       b = 1.5/2 km

                             l = 2b = 2(1.5/2)

                                     l=1.5km