Figure 1 Figure 2 2. Use your answers to fill in the angle sizes below b) Which pair of angles are adjacent angles in figure 2? 4. Define the concept supplementary angles. LESSON PRESENTATION/ ACTIVITY redraw the DEVELOPMENT 15min 1. Two lines that intersect and form right angles are called diagram and perpendicular lines. calculate with The symbol is used to denote perpendicular lines. reasons the value ⊥ In Figure 1, line l line m. of m. ⊥ 2. Intersecting lines: Intersecting lines are two lines that share exactly one point. This shared point is called the point of intersection. , lines AB and CD intersect at point M. Figure 2 Intersecting lines 3. Use figure 2 to answer the following questions: lines AB and
Figure 1 Figure 2 2. Use your answers to fill in the angle sizes below b) Which pair of angles are adjacent angles in figure 2? 4. Define the concept supplementary angles. LESSON PRESENTATION/ DEVELOPMENT 15min ACTIVITY 1. Two lines that intersect and form right angles are called perpendicular lines. The symbol ⊥ is used to denote perpendicular lines. In Figure 1, line l ⊥ line m. 2. Intersecting lines: Intersecting lines are two lines that share exactly one point. This shared point is called the point of intersection. , lines AB and CD intersect at point M. Figure 2 Intersecting lines 3. Use figure 2 to answer the following questions: lines AB and redraw the diagram and calculate with reasons the value of m.
Grade_8_Term_2_Lesson_PLans_Final.docx