class Triangle(object):

def **init**(self, angle1, angle2, angle3):

self.angle1 = angle1

self.angle2 = angle2

self.angle3 = angle3

number_of_sides = 3

def check_angles(self):

if self.angle1 + self.angle2 + self.angle3 == 180:

return True

else:

return False

class Equilateral(Triangle):

angle = 60

def **init**(self):

self.angle = self.angle1

self.angle = self.angle2

self.angle = self.angle3