Question

find length and perimeter of a rectangle of area 200 square and breadth 20 metre​

Answer 1

Let length be l metre

Area = l×b

=> 200 = l × b

=> l = 200/b

= 200/20

= 10

Perimeter = 2(l+b)

= 2(10+20)

= 2×30 = 60 metre.

Answer : Length = 10 m

Perimeter = 60 m