$[-/3$ Points$]$

SCALCET$95\mathrm{.}2\mathrm{.}036.$MI$.$

The graph of $g$ consists of two straight lines and a semicircle as shown in the figure.

Evaluate each integral by interpreting it in terms of areas.

$($a$){\displaystyle \underset{0}{\overset{10}{}}}g(x)dx$

$($b$){\displaystyle \underset{10}{\overset{30}{}}}g(x)dx$

$($c$){\displaystyle \underset{0}{\overset{35}{}}}g(x)dx$