1. The problem statement, all variables and given/known data 3. An equilateral triangle is sitting on an inclined plane. Friction is too high for it to slide under any circumstance, but if the plane is sloped enough it can “topple” down the hill. What angle incline is necessary for it to start toppling? (A) 30 degrees (B) 45 degrees (C) 60 degrees ← CORRECT (D) It will topple at any angle more than zero (E) It can never topple if it cannot slide 2. Relevant equations t = r x F t = I(alpha) 3. The attempt at a solution Not sure, I'm completely lost. Maybe something to do with torque?