Linear pair and adjacent angles Grade 7.pptx

Linear pair and adjacent angles Grade 7.pptx

1. Linear pair and adjacent angles

2. ∠ 𝐴𝐵𝐹 𝑎𝑛𝑑 ∠ 𝐶𝐵𝐹

3. Adjacent angles are two angles which have a common vertex and a common side but have no common interior points. Linear Pair of Angles In geometry, a linear pair of angles is a pair of adjacent angles formed when two lines intersect each other. Adjacent angles are formed when two angles have a common vertex and a common arm but do not overlap. The linear pair of angles are always supplementary as they form on a straight line. In other words, the sum of two angles in a linear pair is always 180 degrees.

4. ADJACENT ANGLES LINEAR PAIR

5. FIND MY MEASURE!

6. A. Given a linear pair, complete the statements below. Illustrate first the given and show your solutions in your answer sheet. 1. If 𝑚∠ 1 = 129, then 𝑚∠ 2= ________. 2. If 𝑚∠ 1 = 38, then 𝑚∠ 2 = ________. 3. If 𝑚∠1 = 88, then 𝑚∠ 2 = ______.  

7. A. Use the figure to complete the table by naming 2 pairs of adjacent angles and 2 linear pairs. At the corresponding column, write the common vertex and the common side.

8. ADJACENT ANGLES COMMON VERTEX COMMON SIDE 4. 5. 6. 7. 8. 9. LINEAR PAIR COMMON VERTEX COMMON SIDE 10. 11. 12. 13. 14. 15.