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sudut PQR : 45°
Dit : PQ + PR
sudut QRP
jawab :
a. PQ + PR
18 cm + 18 cm = 36 cm
Karena Garis PQ dan PR sama-sama panajng
b. Sudut QRP
total sudut 180°
Maka SuduT PQR = 45°
sudut RPQ = 90°
Maka sudut QRP
45° + 90° = 135
Maka 180° - 135° = 45°
Jadi sudut QRP = 45°
SEMOGA BERMANFAAT