Answer:
![P=53.6\ units](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mpqtntbz3ml308h85lo9oylbaaef6rcrfi.png)
Explanation:
we know that
The Two-Tangent Theorem states that if two tangent segments are drawn to one circle from the same external point, then they are congruent
so
Applying the Two-Tangent Theorem at each vertex of the triangle
The perimeter of the triangle is equal to
![P=2(7.8)+2(8)+2(11)=53.6\ units](https://img.qammunity.org/2021/formulas/mathematics/middle-school/r9gt32zpzh1kukv0lhu2olym8h66wox5wh.png)