Answer:
Step-by-step explanation:
To determine if the given values are part of a right-angled triangle, we need to use the Pythagorean theorem, removing one of the variables, and if it results in the neglected value, it is a right-angled triangle.

b.

DEF is not a right triangle.
c.

GHI is a right triangle.
<em>Hope this helped! If you need more help with the practice, please comment below. Have a good day!</em>