Question 1 - Answer:
Angle bisector – ray that divides an angle into two congruent adjacent angles. Triangle – the figure formed by three segments joining three noncollinear points. Each of the three points is a vertex of the triangle and the segments are the sides.
Question 2 - Answer:
Two adjacent angles whose noncommon sides are opposite rays. Two angles whose measures sum to 90 degrees. Two angles whose measures sum to 180 degrees. If two angles form a linear pair, then they are supplementary.
Question 3 - Answer:
The sides of a right triangle have different names: The longest side, opposite the right angle, is called the hypotenuse. In the diagram, the hypotenuse is labelled c. The other two sides are called the legs of the triangle.