সব প্রশ্নে ফিরে যান
Math
The radius of circle A is r, and the radius of circle B is 3/4r. What is the ratio of the area of circle A to the area of circle B?
A) 16 to 9
সঠিক উত্তর
B) 9 to 16
C) 1 to 4
D) 4 to 3