1. SuplementaryAngles. Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use Stage 4 Years 7 & 8 Web

2. Supplementary Angles (1/5) Supplementary Angles Add to 180 o 30 o + 150 o 150 o 30 o = 180 o End of Slide

3. Supplementary Angles (2/5) Supplementary Angles Add to 180 o 70 o + 110 o 110 o 70 o = 180 o End of Slide

4. Supplementary Angles (3/5) Supplementary Angles Add to 180 o 80 o + 100 o 80 o 100 o = 180 o End of Slide

5. Supplementary Angles (4/5) a o + 120 o = 180 o aoao 120 o Example 1: Find the value of the pronumeral. -120 a o = 60 o Reason: Supplementary End of Slide

6. Supplementary Angles (5/5) a o + 70 o = 180 o aoao 70 o Example 2: Find the value of the pronumeral. -70 a o = 110 o Reason: Supplementary End of Slide Web