1. **State the problem:** We are given a triangle with sides 8.3 ft, 6.2 ft, and 1.4 ft, and it circumscribes a circle (meaning the circle is inscribed inside the triangle). We need to find the perimeter of the triangle. 2. **Formula and explanation:** The perimeter $P$ of a triangle is the sum of the lengths of its three sides. 3. **Calculate the perimeter:** $$P = 8.3 + 6.2 + 1.4$$ 4. **Perform the addition:** $$P = 8.3 + 6.2 + 1.4 = 15.9$$ 5. **Conclusion:** The perimeter of the triangle is $15.9$ ft.