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48 + 5x + 6x = 180
11x = 180- 48
11x = 132
x = 12
PRQ = 5x
= 5(12)
= 60 derajat
maaf kalo salah ya semoga membantu
⇔ 11x = 132⁰
⇔ x = 12⁰
sudut PQR adalah sudut R
=5x
= 5(12⁰)
= 60⁰