tolong jawab yaa makasihh

a. 
180 = 2x + 11 + 8x - 11 + x + x
180 = 12x 
x = 180/12 = 15

b.
AOC = AOB + BOC
AOC = 8x - 11 + x
=  9x - 11
= 9(15) - 11
= 135 - 11 = 124

c.
AOH = 2x +11
= 2(15) + 11
= 30 + 11 = 41

d.
180 = AOC + DOC + DOE
180 = 124 + 15 +DOE
180 = 139 + DOE
DOE = 180 - 139
= 41

e.
HOG = 2x = 30
penyikunya = 90 - 30 = 60

f. 
DOE = 41
pelurusnya = AOC + DOC
= 139

g.
HOC = 180 - x
= 180 - 15
= 165

h.
GOE = 3x + 15 + 3x + 4
= 6x + 19
= 6(15) + 19 = 109
refleksnya:
360 - 109 = 251