Rays, angles and angle bisector
- Jorge Cássio
Did you fully understand the terms? In case you had any doubts, write them here.
Look them up on the internet
1- What are acute, right and obtuse angles?
Measuring an angle - Amplitude
In the construction above, move points B or C. What do you see?
Consecutive and Adjacent Angles
Vertically Opposite Angles
What have you noticed? Write an argument to justify your answer.