conversations.from: human
conversations.value: The sum of the three angles of a triangle equals 250. The left angle is twice the right angle's value, and the right angle is 60 degrees. Find the value of the top angle?
  Solve it.
conversations.from: assistant
conversations.value: Since the left angle is twice the value of the right angle, the left angle is 60*2 = 120 degrees.
  The total value of the left and right angles is 120+60 = 180 degrees.
  Since the sum of the three angles is equal to 250, the other angle has a value of 250-180 = 70 degrees.