1. If we take an equilateral (and equiangular) triangle
60
and split it into two triangles, what are the dimensions? 2 2
60
60 2

2. If we take an equilateral (and equiangular) triangle
Recall last chapter when we proved that we could bisect an isosceles triangle into two congruent right triangles
and split it into two triangles, what are the dimensions?
30
30 2 2
What would the height of the triangle be? h
60
60 1 1
Using the Pythagorean Theorem

3. The 30-60-90 Triangle Theorem (pg 370) states what you see below

4. x x Using the Pythagorean Theorem So the hypotenuse here would be
This is the Triangle Theorem (pg 368) x

5. Find the missing sides