(i) Name the angle that corresponds to \(\angle\)1.
(ii) Name the angle that is alternate interior to \(\angle\)3.
(iii) Name the angle that is alternate exterior to \(\angle\)8.
(iv) Name the angle that corresponds to \(\angle\)8.
(v) Name the angle that is alternate exterior to \(\angle\)7.
(vi) Name the angle that is alternate interior to \(\angle\)6.

(i) Which angles are corresponding angles to b°?
(ii) What is the measure of b°?
(iii) Which angles have the measure 68°?
(iv) Which angles have the measure 112°?

If l is parallel to m, find the measure of x and y in the figure.

Construct bisector of the ∠ABC with the measure 80°.

In the adjoining figure, the lines \(\overleftrightarrow { AB } \) and \(\overleftrightarrow { CD } \) intersect at 'O'. If ∠COD = 50°, find the measures of the other three angles.