besar sudut AOB pada gambar di samping adalah pakai cara
4x + 3x + 2x = 180
9x = 180
x = 180/9
x = 20
AOB
2x
2(20)
40
[answer.2.content]100 recettes de cuisine indienne (French Edition)
100 recettes de cuisine indienne (French Edition)
4x + 3x + 2x = 180
9x = 180
x = 180/9
x = 20
AOB
2x
2(20)
40
[answer.2.content]