tolong jawab ya no. 17!!!

x + 15° + 4x + 5° + 5x - 20° = 180°
10x + 0 = 180°
10x = 180°
x = 18°

sudut COD :
= 5x - 20°
= 5 × 18° - 20°
= 90° - 20°
= 70°

• ga ada di pilihan

(x+15)+(4x+5)+(5x-20) = 180
x+15+4x+5+5x-20 = 180
10x = 180
x = 18

<COD = 5x-20
= 5X18 - 20
=90-20
=70