If the radius of a circle is diminished by 10%, then its area is diminished by:

1. 10%
2. 19%
3. 20%
4. 36%

• let r = 10
  area= pie * r^2 = 100*pie
  now it got reduced by 10% i.e it becomes 9
  new area = Pie *9*9 = 81pie
  diminished area= (100pie-81pie)/100pie * 100 = 19%
• 11 years agoHelpfull: Yes(7) No(1)