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Verified answer
CP : PG = 2 : 3Panjanf CG = 15 cm
Maka, Panjang CP = 6 dan PG = 9.
Sudut EH dan BP = sudut BC dan BP = alfa
sin alfa = CP/BP
*) BP = √(BC)^2 + (CP)^2 = √(15)^2+(6)^2 =3√29
sin alfa = 6/3√29 = 2/√29 = 2/29 √29
Semoga membantu, tetap semangat
Salam, Jkira