standard_description: Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.
problem_activity: (Teacher to provide diagrams.)
Prove that angle____ is bisected by ray ____ using constructions.
Below is a list of constructions to create a bisected line segment. Put these constructions in order and provide the reason for each of these, and then describe if the list of constructions helps you prove that the line is bisected.
Copy the angle shown below.


aligns: no