AB and CD are two straight lines, which intersect at 0.

a) What is vertically opposite angles?b) Draw figure with particular enunciation of the giveninformationc) Prove that, the vertically opposite angles are equal

AB and CD are two straight lines, which intersect at 0.

a) What is vertically opposite angles?b) Draw figure with particular enunciation of the giveninformationc) Prove that, the vertically opposite angles are equal