Tolong dijawab yh kk

a) CGB + AGE + AGC + EGB = 360
AGE = CGB
AGC = EGB = 60

2CGB + 120 = 360
2CGB = 360 - 120 = 240
CGB = 240/2 = 120

b) BGE = AGC = 60

c) AGD siku-siku = 90

d) DGE = AGE - AGD = 120 - 90 = 30