Alternate Angles worksheets for gcse maths foundation and gcse higher. Alternate angles worksheet 1 works at grade 2 targeted for year 8. Alternate angles worksheet 3 contains questions for year 7 working at grade 2 and alternate angles worksheet 5 contains questions at grade 4 targeting year 9.
Alternate Angles on Parallel Lines
Spotting Alternate Angles
The example below shows alternate angles. Parallel lines can be horizontal, vertical or slanted with a gradient. All four sets of parallel lines contain alternate angles that are exactly equivalent.
Parallel Lines Joke
Alternate Angles Question and Answer One
Alternate angles image below asks to correctly identify the pair of alternate angles. The alternate angles will form a "Z" shape. Corresponding angles, however, form an "F" shape. Angles on parallel lines follow special rules.
Alternate Angles Question and Answer Two
The alternate angle question below is taken from an exam paper. The answer is 62o. The angles make a Z shape between parallel lines.
Alternate Angles Question and Answer Three
The third alternate angles problem asks for the unknown missing angle. Angles on straight lines equal to 180 degrees. The supplementary angle is 104o because it is an alternate angle. 180o - 104o = 76o. The final answer therefore is 76o.