Hello, this code already passed the lesson. However, I am not sure if it is technically correct. The goal of this code is to check if the arguments I pass in the method check_angles() return True for a triangle if all the angles add up to 180. However, it returned False, so I am not sure what I am missing or if my reasoning was wrong.

```
class Triangle(object):
number_of_sides = 3
def __init__(self, angle1, angle2, angle3):
self.angle1 = angle1
self.angle2 = angle2
self.angle3 = angle3
def check_angles(self):
if self.angle1 + self.angle3 + self.angle3 == 180:
return True
else:
return False
my_triangle = Triangle(90, 90, 0)
print my_triangle.number_of_sides
print my_triangle.check_angles()
```