In a triangle with angles A, B, and C, A is 60 degrees, and B is two times as big as C. Calculate the angle of B. Let's think first. Chain of thought:
Since the angles in a triangle adds up to 180, and A is 40 degrees, B and C have a total of 180 - 60 = 120 degrees. Since B is two times bigger than C, the total of the angles of B and C is equal to 2C + C = 120. 3C = 120. The angle of C is C = 120 / 3. C is 40. Since B is two times as big as C, B is 2 * 40 = 80 degrees.
Therefore, the answer is 80.