Question

In the given figure; AB, CD and EF are straight lines. Name the pair of angles forming :

(i) straight line angles.

(ii) vertically opposite angles.

Answer 1

In the given figure, AB, CD, and EF are straight lines on intersecting, angles are formed a, b, c, d, l, m, n, and p.

(i) In the figure pairs of straight line angles are ∠a, ∠b; ∠b, ∠c; ∠c, ∠d; ∠d, ∠a ∠l, ∠m; ∠m, ∠n;∠n, ∠p, and ∠p, ∠l

(ii) Pairs of vertical angles are ∠a, ∠c; ∠b, ∠d; ∠l, ∠n; ∠m, ∠p