Page 8 - CH - 2 - LN - 2.4

 An angle bisector is a line or ray that divides an angle into two equal parts, creating two
angles of the same measure.

Angles are classified into acute (less than 90°), right (exactly 90°), obtuse (greater than 90° but less
than 180°), straight (180°), and reflex (greater than 180° but less than 360°).
Question: Draw rough diagrams of two angles such that they have

(a) One point in common.
(b) Two points in common.

Answer

(a) In the figure below, ∠PQS and ∠RQT have one point Q in common.

(b) In the figure below, ∠ABC and ∠DEF have two points P and Q in common.