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Verified answer
IPA = 360° - (90°+80°+150°)IPA = 360° - 320°
IPA = 40°
Siswa yang suka Pkn
= 150°/40° x 20 siswa
= 75 siswa
Siswa yang suka Matematika
= 90°/40° x 20 siswa
= 45 siswa
Selisih siswa yg suka Pkn dan Matematika
= 75 siswa - 45 siswa
= 30 siswa
Semoga Membantu :)