Each of the three shaded regions above is a semicircle. If AB = 4, BC = 2AB, and CD = 2BC, what is the area of the entire shaded region?
A. 28π
B. 42π
C. 84π
D. 96π
Answer:B
Each of the three shaded regions above is a semicircle. If AB = 4, BC = 2AB, and CD = 2BC, what is the area of the entire shaded region?
A. 28π B. 42π C. 84π D. 96π
Explanation: B