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Verified answer
Kelas 8 MatematikaBab Garis dan Sudut
∠RPQ + ∠PQR = ∠QRS
2a + 74° = 8a + 2°
74° - 2° = 8a - 2a
72° = 6a
a = 72° / 6
a = 12°
∠QPR = 2 . a
∠QPR = 2 . 12°
∠QPR = 24°