7.besar sudut cbd adalah??

5x + 4x = 180°
9x = 180°
x = 180° ÷ 9 = 20°
Sudut cbd = 4x = 4×20° = 80°
Opsi c
Tolong jadikan jawaban terbaik..

sudot CBD = 5X + 4X = 180°
9x= 180°
x=180:9
x=20

jadi sudot cbd = 4x = 4.20=80°


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