Unit 9 Contents

We often name an angle by a letter written at its corner. The angles in this shape can be named ∠J, ∠K, ∠L, and ∠M.

Check-In: Question 6

6. Angles can be sorted, or classified, based on their size.
   
   Classify the angles in the shape below as acute, obtuse, or right. Use a square corner of paper to help you.
   
   Write your answers and explain your thinking in a table like this one.