Intersecting and parallel lines

1

What are intersecting lines?

2

What are parallel lines?

3

Which picture shows alternate angles?

4

Which picture shows opposite angles?

5

Which picture shows corresponding angles?

6

Which picture shows co-interior angles?

7

What's the size of angle {q}^\circ?

Angles on intersecting and parallel lines diagram

8

What's the size of angle {p}^\circ?

Angles on intersecting and parallel lines diagram

9

What's the size of angle {r}^\circ?

Angles on intersecting and parallel lines diagram

10

What's the size of angle {s}^\circ?

Angles on intersecting and parallel lines diagram