Millionaire Mode

Area of Circular Rings (Annuli) - Class IX

Question 1 of 19

Find the area of a ring whose outer and inner radii are $19\ cm$ and $16\ cm$ respectively.

  1. $330\ cm^2$
  2. $310\ cm^2$
  3. $320\ cm^2$
  4. $350\ cm^2$

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000