Answer:
The perimeter of the triangle can be expressed as;
[tex]3w+19[/tex]Explanation:
Given the triangle with the sides shown on the question;
The perimeter is the sum of the three sides;
[tex]\begin{gathered} P=(w+10)+(w+3)+(w+6) \\ P=w+10+w+3+w+6 \\ P=w+w+w+10+3+6 \\ P=3w+19 \end{gathered}[/tex]Therefore, the perimeter of the triangle can be expressed as;
[tex]3w+19[/tex]