To determine if triangle DEF with sides measuring 50, 40, and 32 is a right triangle, we can use the Pythagorean theorem. The theorem states that for a triangle with sides of lengths \(a\), \(b\), and \(c\) (where \(c\) is the longest side), the triangle is a right triangle if:
\[ a^2 + b^2 = c^2 \]
In this case, the longest side is 50. Hence, we identify \(a = 40\), \(b = 32\), and \(c = 50\). Now we check:
\[ 40^2 + 32^2 = 50^2 \]
Calculating each side:
\[ 40^2 = 1600 \] \[ 32^2 = 1024 \] \[ 50^2 = 2500 \]
Now adding \(40^2\) and \(32^2\):
\[ 1600 + 1024 = 2624 \]
Comparing \(2624\) with \(2500\):
Since \(2624 \neq 2500\), triangle DEF is not a right triangle.
Thus, the answer is:
\[ 0 \]