February 06th, 2015

• Corrected HW on angles from Ex. 9.1. 
• Returned tests on quadratics. 
• Looked at video in yesterdays blog. 
• Introduced Section 9.2 Triangles: Scalene, equilateral, isosceles and right angled-triangles. 
• Proved that angles in triangle add to 180 degrees. 
• Proved that the exterior angle is equal to the sum of the two interior opposite angles.
  

HW: Ex. 9.2 Q.1-8