Question

calculate <AOC. plz reply abd with process. plz plz plz reply fast.. <BAO=30° AND <BCO=40°.........PLZ REPLY

Answer 1

BAO=30°
SO , OBA=30°(oa and ob are the radius of the circle so they are equal and in triangle aob the two sides are equal so the base angles will be equal)
BCO=40°
so, obc=40

angle Abc=OBA+OBC=30°+40°=70°

According to theorem aoc = 2 abc
= 2 × 70°=140°