Answer:
Area of the shaded region = 329.7cm
Explanation:
Area of circle = π r2
Area of smaller circle with radius of 4 cm = 3.14 * 4 * 4 = 50.24cm
Area of bigger circle with radius of 11 cm = 3.14 * 11 * 11 = 379.94cm
To calculate the area of shaded region,
Area of the shaded region = bigger region - smaller region
39.7 - 50.24 = 329.7cm
Area of the shaded region = [tex]329.7cm[/tex]
