Answer:
The third side is 5.7 centimeters.
Step-by-step explanation:
The hypothenuse is the largest side of a right triangle. So in this question, we know that the hypothenuse is 7.
One of the sides is 4, and the other is x.
Applying Pythagoras' Theorem:
[tex]x^{2} + 4^{2} = 7^{2}[/tex]
[tex]x^{2} = 49 - 16[/tex]
[tex]x^{2} = 33[/tex]
[tex]x = \pm \sqrt{33}[/tex]
Since it is a length measure, we only take the positive value
[tex]x = 5.7[/tex]
The third side is 5.7 centimeters.
