# Question 1 of 79

The figure below is formed by 3 circles with the same center. Their radii is in the ratio 2 : 3 : 4. The diameter of the smallest circle is 4cm. Find the diameter of the smallest circle is 4cm. Find the area of the shaded parts.

A
7$\pi cm^2$
B
11$\pi cm^2$
C
15$\pi cm^2$
D
19$\pi cm^2$
E
None of the above