7.5 CALCULATING ANGLES 

Learning objectives

At the end of this paragraph you are able to...

...use the angle sum of a triangle. 

...use the angle sum of a quadrilateral.

...use the base angles. 

...use the opposite angles. 

...use the angle bisector. 

...calculate angles in triangles. 

Explanation video

Exercises

You need to do the exercises in your notebook. The exercises are in your textbook: numbers and space.

56,  57, 58(havo only), 59,  61(vwo only)

Check your answers with a different colour