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Kelas 10 MatematikaBab Trigonometri
Sudut R
= 180° - 30° - 60°
= 90°
PQ/sin R = PR/sin Q
PQ = 2√2 . sin 90°/sin 60°
PQ = (2 √2 . 1)/(1/2 √3)
PQ = (2 . 2√2)/√3 . (√3)/(√3)
PQ = (4/3) √6 cm