Respuesta :

Answer:

7.21 cm.

Step-by-step explanation:

4² + 6² = x²

16 + 36 = x²

52 = x²

[tex]\sqrt{52} = x[/tex]

7.21 cm.

Check

The third side of a triangle is greater than the difference and less than the sum of the lengths of the two given sides.         6 - 4 = 2  and 6 + 4 = 10

So the third side is between 2 and 10.