Respuesta :

mathstudent55

Answer:

29.7

Step-by-step explanation:

5² + 12² = x²

x = 13

6² + 8² = y²

y = 10

3² + 6² = z²

z = √45

perimeter = x + y + z

perimeter = 13 + 10 + √45

perimeter = 29.7