The image shows a right triangle with sides labeled. The concept is the Pythagorean theorem: in a right triangle, the square of the hypotenuse (the side opposite the right angle) equals the sum of the squares of the other two sides. The formula is:

$a^2+b^2=c^2$

Here, the hypotenuse is 5, and the other sides are 3 and 4. Let's verify: $3^2+4^2=9+16=25=5^2$. This confirms the theorem.

Final Answer: The triangle satisfies the Pythagorean theorem.