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Sifat-sifat sudut pada lingkaran:
[tex]\begin{aligned} \bold{\angle QOR} &= 2 \times \angle RPQ \\&= 2 \times 60^\circ \\&= \boxed{\bold{\underline{120^\circ}}}\end{aligned}[/tex]
[tex]\begin{aligned}\bold{\angle PQR} &= \angle PQO + ((180^\circ - \angle QOR) \div 2) \\&= 15^\circ + ((180^\circ - 120^\circ) \div 2) \\&= 15^\circ + (60^\circ \div 2) \\&= 15^\circ + 30^\circ \\&= \boxed{\bold{\underline{45^\circ}}} \end{aligned}[/tex]
Opsi Jawaban : C dan D
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at | 06 - 06 - 2023}}[/tex]
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Lingkaran
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Sifat-sifat sudut pada lingkaran:
Penyelesaian Soal
[tex]\begin{aligned} \bold{\angle QOR} &= 2 \times \angle RPQ \\&= 2 \times 60^\circ \\&= \boxed{\bold{\underline{120^\circ}}}\end{aligned}[/tex]
[tex]\begin{aligned}\bold{\angle PQR} &= \angle PQO + ((180^\circ - \angle QOR) \div 2) \\&= 15^\circ + ((180^\circ - 120^\circ) \div 2) \\&= 15^\circ + (60^\circ \div 2) \\&= 15^\circ + 30^\circ \\&= \boxed{\bold{\underline{45^\circ}}} \end{aligned}[/tex]
Opsi Jawaban : C dan D
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at | 06 - 06 - 2023}}[/tex]