Find the Area of the Shaded Region $\text { in } ^ { 2 }$

Multiple Choice

Find the area of the shaded region.

A) 12 $\text { in } ^ { 2 }$
B) 24 $\text { in } ^ { 2 }$
C) 72 $\text { in } ^ { 2 }$
D) 36 $\text { in } ^ { 2 }$
E) 144 $\text { in } ^ { 2 }$