Question

The area (A) of the circle is directly proportional to square of its radius (r). ​

Answer 1

Answer:

yes it is true.... becoz A=πr^2

Answer 2

Answer:

it is not directly proportional

Step-by-step explanation:

area of circle =π r^2

28= 22/7 × a a× 22/7 =28. a= 28- 7/22. a =616- 7/22 a=609 ( hence a= r^2) a =√ 609. a = 24 .677 r = a