Module 9: Geometry

• Triangles are three-sided shapes with three angles.
• All angles will always add up to 180° (it’s not a triangle otherwise).
• There are 4 types of triangles:
  1. Scalene: When all angles are different from one another.
  2. Isosceles: When two angles (and two sides by consequence) are the same.
  3. Equilateral: When all angles are the same (each angle is 60°).
  4. Right: When a right angle is present (90°)

For the sake of this module, we’ll only focus on the right triangle. Remember, while these triangles must have a right angle, all the angles must add to 180°, meaning not all combination of angles work.