1. (a) 2p -55 + 3p + 70 ° = 180° (adjacent angles on straight) 5p + 15 = 180° 5p = 180°-15 5p = 165° P = 33° (b) JR = 2p - 55 = 2(33) - 55 = 11° (2) Calculate the value of t 180°-3r= 126 (vertically opposite angles) -3r = -54 r = 18
1. (a) 2p -55 + 3p + 70 ° = 180° (adjacent angles on straight) 5p + 15 = 180° 5p = 180°-15 5p = 165° P = 33° (b) JR = 2p - 55 = 2(33) - 55 = 11° (2) Calculate the value of t 180°-3r= 126 (vertically opposite angles) -3r = -54 r = 18
Grade_8_Term_1_Lesson_Plans_Final.docx