Respuesta :

Answer:

20

Step-by-step explanation:

Thing to Remember :

Length of tangents from same external point is the same.

Solving :

  • Perimeter (ΔABC) = 2(5) + 2(2) + 2(3)
  • Perimeter (ΔABC) = 2(5 + 2 + 3)
  • Perimeter (ΔABC) = 2(10)
  • Perimeter (ΔABC) = 20