jawab pakai cara.............

jumlah seluruh sudut = 180°
7x + 8 + 5x + 4 = 180
12x = 168
x = 14

<PQS
= 7(14) + 8
= 98 + 8
= 106°

jawaban C

7x + 8 + 5x + 4 = 180
7x + 5x + 8 + 4 = 180
12x + 12 = 180
12x = 180 - 12
12x = 168
x = 14

<PQS = 7x + 8
7(14) + 8
98 + 8
106

jawabannya C