please i need help with this i dont understand it
![please i need help with this i dont understand it class=](https://us-static.z-dn.net/files/d9b/a38903bbd239bbbc7a0bc5db46eebb49.jpg)
Answer:
1. No
2. Right triangle
3. No
4. Right triangle
Step-by-step explanation:
A, B = two smallest sides
C = hypotenuse, largest side
Pythagorean theorem. If A^2 + B^2 = C^2, then you have a right triangle.