Bantu jawab ya, yg aku garisin ajaa, yg engga gausah, mksh sebelumnyaaa​

jawabannya sesuai yg difotoin yaaaa

12. 49°35'38"
18°40'43"
________+
67°75'81" = 68°16'21" (B)

13. 3x+2x = 90°
5x = 90°
x = 18°

Sudut BAD = 2x = 2 x 18° = 36° (C)

20. lurus (C)

16. 180° -90° = 90°
90°=2x + 3x +10
80°= 5x
x = 16°

Sudut BOC = 3x+10= 3.16+10 = 58°(A)

maap klo salah, smoga membantu