Answer:
c. 16.5
Step-by-step explanation:
It's the right triangle.
The formula of an area of a right triangle:
[tex]A=\dfrac{(leg)(leg)}{2}[/tex]
Look at the picture.
We have
[tex]leg=3,\ leg=11[/tex]
Substitute:
[tex]A=\dfrac{(3)(11)}{2}=\dfrac{33}{2}=16.5[/tex]
