Question

Bantu jawab yah kakak kakak, caranya juga ^^

Answer 1

x / y = 3/5 --> x = (3/5)y

itu sudut refleksnya = 208°, berarti

sudut BOE = 360° - 208° = 152°

sudut BOE = x + y

152° = (3/5)y + y

152° = 8/5y

y = 152(5/8)

y = 95°

x = (3/5)y = (3/5).95 = 57°

sudut CBO = x = 57°

jadi sudut ABO = 180° - 57° = 123°