Tolong jawab beserta caranya
Jawaban Terkonfirmasi
✔ Mapel = Matematika
✔ Kelas = 7 SMP
✔ Materi = Garis dan Sudut
✔ Kata kunci = Berpelurus
Penyelesaian :
➡➡➡➡➡➡➡➡➡➡➡➡
Nilai x
180° = 3x° + 2x° – 5°
180° = 5x° – 5°
5x° = 180° + 5°
5x° = 185°
x = 185°/5°
x = 37
Besar Pelurus COB
= AOB
= 2x° – 5°
= 2(37)° – 5°
= 74° – 5°
= 69°
Jawabannya B
Semoga Membantu 🙂