## Elementary Geometry for College Students (7th Edition) Clone

About 322.54 in$^2$
120$^{\circ}$ is one third of the rotation of a circle. radius of the large circle=R=18 radius of the small circle=r=4 A=$\frac{1}{3}$$\piR^2-\frac{1}{3}$$\pi$r$^2$ A=$\frac{1}{3}$$\pi(18)^2-\frac{1}{3}$$\pi$(4)$^2$ A=108$\pi$-$\frac{16}{3}$$\pi$ A$\approx$322.54