True.
To determine if the triangle with sides 10, 24, and 26 is a right triangle, we can use the Pythagorean theorem, which states that for a right triangle with legs \(a\) and \(b\), and hypotenuse \(c\), the following equation holds:
\[ a^2 + b^2 = c^2 \]
First, we identify the sides of the triangle:
- \(a = 10\)
- \(b = 24\)
- \(c = 26\)
Now we square the lengths of the sides:
\[ 10^2 + 24^2 = 100 + 576 = 676 \] \[ 26^2 = 676 \]
Since \(10^2 + 24^2 = 26^2\), we find that:
\[ 676 = 676 \]
Therefore, the triangle with sides 10, 24, and 26 satisfies the Pythagorean theorem, confirming it is a right triangle.
Thus, the statement is True.