Question

The area of two circles are in the ratio 16:25 find the of their circumfetences

Answer 1

Let the radii of the 2 circles be r₁ and r₂ respectively.

So, area of circle 1/area of circle 2= π r₁²/π r₂²

= (r₁/r₂)²

But, given that (r₁/r₂)²= 16/25

=> r₁/r₂= 4/5

Circumference of circle 1/Circumference of circle 2

=> 2π r₁/2π r₂

=>r₁/r₂= 4/5

Answer 2

Answer:

Explanation:

Please refer the below attachment.