The F-shape can be backwards, sideways or upside down. These images all show alternate angles. The angles on opposite sides of the transversal within the parallel lines are always equal.

Since the sum of all three angles is not equal to 180°. So, no triangle can be drawn with the given angles. 5. A transversal intersects two parallel lines as shown in the figure given below.

When a pair of parallel lines meet an intersecting transversal, pairs of angles with particular properties are made. Corresponding angles are equal. The lines make an F shape. Notice that the F ...