In the given figure, straight lines AB and CD intrsect at O. If ∠AOC

1.	In the given figure, straight lines AB and CD intrsect at O. If ∠AOC=ϕ,∠BOC=θ and θ=3ϕ, then ϕ=? (a)30∘ (b)40∘ (c)45∘ (d)60∘
Answer» In the given figure, straight lines AB and CD intrsect at O. If $∠ A O C = ϕ, ∠ B O C = θ$ and $θ = 3 ϕ$ , then $ϕ = ?$ $(a) 30^{\circ}$ $(b) 40^{\circ}$ $(c) 45^{\circ}$ $(d) 60^{\circ}$

In the given figure, straight lines AB and CD intrsect at O. If ∠AOC=ϕ,∠BOC=θ and θ=3ϕ, then ϕ=? (a)30∘ (b)40∘ (c)45∘ (d)60∘

Answer»

In the given figure, straight lines AB and CD intrsect at O. If $∠ A O C = ϕ, ∠ B O C = θ$ and $θ = 3 ϕ$ , then $ϕ = ?$

$(a) 30^{\circ}$

$(b) 40^{\circ}$

$(c) 45^{\circ}$

$(d) 60^{\circ}$