June 2019 1 356 Report
Pada gambar berikut, PQ = 4 cm, sudut QPR = 30°, dan sudut PQR = 90°. Jika sin 30° = ½, cos 30° = ½√3, dan tan 30° = ⅓√3, maka luas segitiga PQR (dalam cm²) adalah

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