Question

the length and breadth of a rectangle are in the ratio 2 : 1 it its breadth is 20m then its perimeter is ​

Answer 1

Answer:

perimeter=120m

Step-by-step explanation:

breadth(b)=20m

ATQ,

      length(l)=2b=40m

perimeter=2(l+b)

               =2(40+20)

               =2×60

               =120m

Answer 2

Answer:

area of rectangle=1/2xbasexheight

= 1/2x20xheight

height=1/2x20