1. Set the angle to [math]60^{\circ}[/math]. What is the value of the other angle?

2. This triangle is half of an equilateral triangle, where [i]g[/i] is the line cutting the equilateral triangle in half. Recall that an equilateral triangle has three equal angles (all [math]60^\circ[/math]) and three equal sides. What is the length of side [i]f[/i]?

3. Use Pythagoras' Theorem to find the length of side [i]g[/i].