Question

The diameter of the larger circle is 12.5 cm. The diameter of the smaller circle is 3.5 cm. What is the best approximation for the area of the shaded region? Use 3.14 to approximate pi.
A.28.26 cm²
B.113.04 cm²
C.132.27 cm²
D.254.34 cm²

Answer 1

Answer:

The exact answer is 452.16 cm^2

Step-by-step explanation:

See area of circle with concentric rings is = \pi(R^2 - r^2)

So putting the values Area = 3.14(12.5^2 - 3.5^2)

                                                = 452.16 cm^2