1. Olympic Javelin Estimating Angles / Angles in a triangle

2. How big is the angle shown before the javelin is released? a) 75 degrees b) 40 degrees c) 55 degrees How big is the angle shown when the javelin has landed? a) 45 degrees b) 30 degrees c) 70 degrees If these 2 angles were part of a triangle, what would the 3rd angle be? ? Qu.1 80 o 55 o 45 o

3. How big is the angle shown before the javelin is released? a) 85 degrees b) 60 degrees c) 70 degrees How big is the angle shown when the javelin has landed? a) 65 degrees b) 85 degrees c) 90 degrees If these 2 angles were part of a triangle, what would the 3rd angle be? ? Qu.2 25 o 70 o o 85

4. How big is the angle shown before the javelin is released? a) 40 degrees b) 25 degrees c) 60 degrees How big is the angle shown when the javelin has landed? a) 65 degrees b) 55 degrees c) 80 degrees If these 2 angles were part of a triangle, what would the 3rd angle be? ? Qu.3 o 75 40 o o 65

5. How big is the angle shown before the javelin is released? a) 50 degrees b) 60 degrees c) 70 degrees How big is the angle shown when the javelin has landed? a) 95 degrees b) 180 degrees c) 90 degrees If these 2 angles were part of a triangle, what would the 3rd angle be? ? Qu.4 o 30 60 o o 90