apa jawaban nomr Satu Dan dua

1. a.) 2p + 3p + 85° = 180°
5p = 180 - 85
5p = 95
p = 95/5
= 19°
b.) <NOM = 3p
= 3 × 19 = 57°
2. a.) 5x - 10 + 2x + 16 = 90°
7x + 6 = 90°
7x = 90 - 6
7x = 84
x = 84/7
x = 12°
b.) <COB = 5x - 10
= 5(12) - 10
= 60 - 10
= 50°