week 2 angle pairs matatag curriculum grade 7.pptx
- 1. Angle Pairs Relationships between angle pairs based on their measures. Math 7 –Quarter 1, Week 2
- 2. Lesson Objective: 1.describe and explain the relationships between angle pairs based on their measures.
- 4. Pairs of angles Angle pairs are sometimes classified not by their measures but by their positions relative to each other. They are called angle pairs because they always appear as two angles working together to display geometrical property.
- 5. Pairs of angles Pairs of angles include adjacent angles, complementary angles, supplementary angles, linear pair, and vertical angles.
- 6. Adjacent angles Adjacent angles are two angles in a plane which have a common vertex and a common side but no common interior points. E A T H R
- 7. complementary angles Complementary angles are two angles whose sum is 90°. Two angles are said complementary if they are adjacent and forms a right angle. P Q S R 1 2
- 8. Supplementary angles Supplementary angles are two angles whose sum is 180°. Two angles are said supplementary if they are adjacent. L V O E 1 2
- 9. Linear pair Linear pairs are formed when two angles are both adjacent and supplementary. T A E M 1 2
- 10. VERTICAL ANGLES Vertical angles are formed when two lines intersect each other. Two intersecting lines form two pairs of vertical angles. 1 2 3 4
- 11. Lesson Activity Activity 2: Angle Pairs By the use of a protractor measure the interior angles A and B. Every group has the same question. Write your answer on a sheet of paper provided. 1. Using a protractor, measure each angle A and B. Record your measure. 2. What is the sum of the measures of angles A and B in figure1 and in figure2. 3. Are the angles complementary? Supplementary? Equal? 4. Do the angles have a common side?