Halloo kaka, kalo ada yang bisa tolong bantu ya!!
(3x + 15)° + (2x + 10)° = 180°
3x + 2x + 15 + 10 = 180
5x + 25 = 180
5x = 180 – 25
5x = 155
x = 155 ÷ 5
x = 31
Besar pelurus KLN = MLN
MLN = (2x + 10)°
MLN = (2 × 31 + 10)°
MLN = (62 + 10)°
MLN = 72°