The ratio of the area of a circle to the area of a square is 11 : 14 and the area of a rectangle is 147cm². If the length of a rectangle is equal to the side of the square and the ratio of the breadth and length of a rectangle is 3 : 4. Then, find the radius of a circle.
1
5 cm
2
7 cm
3
9 cm
4
4 cm
5
8 cm