ACMMG166
Demonstrate that the angle sum of a triangle is 180 degrees and use this to find the angle sum of a quadrilateral
| 1. | Tri-Trip - angle sum of a triangle | |
| 2. | Tri-trip Terry - angle sum of a triangle | |
| 3. | Top Of The Tower Triangle - calculate size of angles in isosceles triangle, angle sum of a triangle | |
| 4. | Ancient Angles - calculate size of base angles in isosceles triangle, angle sum of a triangle | |
| 5. | Angling With Ants - calculate angle size, angle sum of a triangle | |
| 6. | Leaning In On The Angles - angle sum of a quadrilateral | |
| 7. | ABCs 1 - triangle geometry, equal angles opposite equal sides | |
| 8. | Tricky Triangles 4 - calculate reflex angle of equilateral triangle | |
| 9. | Tricky Triangles 3 - calculate size of angles in isosceles triangle, angle sum of a triangle, reflex angles | |
| 10. | Shape Up! 7 - equilateral triangle, angle sum of triangle | |
| 11. | Phoebe's Triangle Theorems 1 - angle sum of a triangle | |
| 12. | Shape Up! 4 - calculate size of angles in isosceles triangle, angle sum of a triangle | |
| 13. | Shape Up! 1 - exterior angles of a triangle |