kak bantu jawab soal nomor 8. Pake cara nya juga kak

180 = <KLN + <NLM
180 = 3x + 15 + 2x + 10
180 = 5x + 25
180 - 25 = 5x
155 = 5x
x = 155/5
x = 31

Pelurus <KLN = <NLM
= 2x + 10
= 2(31) + 10
= 62 + 10
= 72°