The graph of $g$ is comprised of a semi-circle and line segments.  **Evaluate the definite integral of ** $\displaystyle \int_{15}^{17} g(x) \,dx$ **.** [[☃ numeric-input 1]] units$^2$ [/]: (Additional ranges 3 to 6 +- and 15 to 17 +- I like the idea of 4 to 16 too as a semicircle and a trapezoid, but it is less conventional)