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QR PR
______ = ______
sin ∠ P sin ∠ Q
8 PR
______ = ______
sin 30⁰ sin 60⁰
8 PR
___ = ____
½ ½√3
8 PR
___ = ____
1 √3
PR = 8√3 cm
Jadi, panjang sisi PR adalah 8√3 cm