Question

In the given figure, O is the centre of a circle and arc AB = arc BC = arc CD. If ∟COB = 60˚, find: i) ∟ AOC ii) ∟DOC iii) ∟OAC (Give Reasons) *

Answer 1

cd also = arc.

coa= 180° .

doc=60°

oac=180°

Answer 2

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