Didactic unit: Plane geometry (2nd activity: angles estimation)

Angles: Complementary angles, Supplementary angles, Opposite angles and angles with Parallel sides.

In this activity we are going to learn how to estimate angles knowing only another angle that it is related with the first one.


Help Mario to save Damsel. For that, estimate how many degrees have every angle in the following crossroad.



For this  activity, you can use the following links that will help you to know how to estimate the angles:

• Vertical opposite angles
• Complementary and supplementary angles
• Angles with parallel sides