If one of the angles of a triangle is 90 degrees. What would be the value of the other two angles? A) 60 and 30 degrees B) 50 and 40 degrees C) 70 and 20 degrees D) 45 and 45 degrees Related MCQs: Sum of the angles inside a triangle is always? What is the sum of all angles of a triangle? A triangle that has three equal angles is called: What is the sum of all angles of a triangle?