Answer:
The area of Circle 1 is 9 times greater than the area of Circle 2.
Explanation:
Use this formula:
Area = π * radius².
Determine given variables and Numbers:
Circle 1 has a radius of 9 yd.
Circle 2 has a radius of 3 yd.
Input Given Variables and Numbers:
Area of Circle 1 = π * (9 yd)²
Area of Circle 2 = π * (3 yd)²
Divide Both Formulas:
(π * (3 yd)²) / (π * (9 yd)²)
Simplify The Expression
(π * 3²) / (π * 9²)
= 9 / 81
= 1 / 9.