Answer: 15 square units.
Step-by-step explanation:
From the given figure, we have a polygon in which there are 5 triangular regions having equal area.
The area of each triangle = 3 square units.
Then , the area of the polygon is given by :-
[tex]\text{Area of polygon}=5\times3\\\\\Rightarrow\ \text{Area of polygon}=15\text{ square units}[/tex]
Hence, the area of the whole polygon = 15 square units.
