tolong jawab dengan caranya ya no 8-11 :)

no. 8. A
no. 9. D
no. 10. B
no. 11. A

8. 4x + 2x + 4x = 180
10x = 180
x = 18

sudut BED = 6 x 18
=108

9. 5p + p = 180
p = 30

pelurusnya = 30

10. jkurang tau caranya

11. 5x + 22 + 3x - 2 = 180
8x = 160
x = 20

sudut ABD = 5x + 22
= 122

maaf kalo salah ya, semoga membantu