Question

Pls explain this to be marked as brainliest​

Answer 1

solve it further and u will get your answer.

hope this helps

Answer 2

All circles are similiar to each other. The ratio of the areas of similar figures is equal to the square of the ratio of corresponding lengths of those figures. So, if the ratio of the diameters of circles is 1:2:3, then the ratio of their areas is 1:2²:3²=1:4:9.