Answer:
No, they do not make a right triangle.
Explanation:
Use the Pythagorean Theorem to see if the sides form a right triangle.
![a^2+b^2=c^2](https://img.qammunity.org/2021/formulas/mathematics/middle-school/96dopf217hvzc3zhswffnjr8l5f26vmjhb.png)
'20' will be 'c'. It is the largest number in the sides given.
'8' will be 'a' and 17 will be 'b'.
![8^2+17^2=20^2\\\rightarrow 8^2=64\\\rightarrow 17^2 = 289\\\rightarrow 20^2=400\\64+289=400\\\boxed{353\\eq 400}](https://img.qammunity.org/2021/formulas/mathematics/high-school/1b9j3ez1j9tgj6ydsi53ug8vd9xohv0vs7.png)
The sides do not make a right triangle. They do not satisfy the theorem.