96°
Penjelasan dengan langkah-langkah:
<CDB = 42°
<COB = 2 x <CDB
= 2 x 42°
= 84°
<AOB + <COB = 180° (garis lurus)
<AOB = 180° - <COB
= 180° - 84°
= 96°
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96°
Penjelasan dengan langkah-langkah:
<CDB = 42°
<COB = 2 x <CDB
= 2 x 42°
= 84°
<AOB + <COB = 180° (garis lurus)
<AOB = 180° - <COB
= 180° - 84°
= 96°