saya minta bantuan nya ya

< BOC + < BOD = 90°
(2x+5)° + (3x+10)° = 90°
5x° + 15° = 90°
5x° = 75°
x = 15°

jadi, < BOC = 2x+5 = 2(15) + 5 = 30+5 = 35°

#semoga membantu :)