Respuesta :

galob3764

Answeri dont know sorry

Step-by-step explanation:

Answer:

Third side = √7 units.

Step-by-step explanation:

Use Pythagoras Theorem:

4^2 = 3^2 + x^2

x^2 = 4^2 - 3^2 = (4-3)(4+3) = 7

x = √7.