Use trigonometric ratios and Pythagoras' theorem in two and three dimensions

1.		Triangle Tangle - Determine the size of an angle in a triangle given an algebraic expression for the relationship between the 3 angles
2.		Uncovering the Plot - move objects to given coordinates, side length of triangle
3.		Size Matters - move objects to given coordinates, calculate side length of triangle formed
4.		Degrees of Time - angle in turn made by hours hand between 2 and 6 o'clock
5.		Top Of The Tower Triangle - calculate size of angles in isosceles triangle, angle sum of a triangle
6.		Ancient Angles - calculate size of base angles in isosceles triangle, angle sum of a triangle
7.		ABCs 2 - angle sum of quadrilateral, degrees in revolution
8.		ABCs 1 - triangle geometry, equal angles opposite equal sides
9.		Tricky Triangles 4 - calculate reflex angle of equilateral triangle
10.		Tricky Triangles 3 - calculate size of angles in isosceles triangle, angle sum of a triangle, reflex angles
11.		Tricky Triangles 2 - calculate size of angles in isosceles triangle, angle sum of a triangle
12.		Tricky Triangles 1 - calculate size of angles in isosceles triangle, angle sum of a triangle
13.		Shape Up! 7 - equilateral triangle, angle sum of triangle
14.		Shape Up! 4 - calculate size of angles in isosceles triangle, angle sum of a triangle
15.		Shape Up! 1 - exterior angles of a triangle