Respuesta :

doomdabomb
Answer:

18 units

Step-by-step explanation:

a^2 + b^2 = c^2

3^2 + 4^2 = c^2

9 + 16 = c^2

c^2 = 25

Square root of 25 = 5

5 + 5 = 10

(Opposite sides are congruent)

4 + 4 = 8

10 + 8 = 18

Therefore, the perimeter is 18