Question

The diameter of the larger circle is 10.5 cm. The diameter of the smaller circle is 4.5 cm.

Answer 1

70.7cm^2
is the anwser

Answer 2

4.5 / 2 = 2.25cm radius for the smaller circle

3.14 (pi) × 2.25² = 15.89625cm²

10.5 / 2 = 5.25cm radius for the larger circle

3.14 × 5.25² = 86.54625cm²

86.54625 - 15.89625 = 70.65cm² 

The answer is 70.7cm².