Unit 9 Contents

Name all the right angles, acute angles, and obtuse angles in the figures below.

5. 
6. 
7. Use a ruler to draw two acute angles.
8. Use a ruler to draw two obtuse angles.
9. How many right angles do you have to put together to make one full turn?
10. Using a ruler, draw a shape with 4 angles.
11. Using a ruler, draw a shape with 5 angles.

Below are two maps of street crossings. For each map, find the number of
acute angles, obtuse angles, and right angles.