Angles on a Straight Line (6)

Investigate, with and without digital technologies, angles on a straight line. Use results to find unknown angles (ACMMG141)

LO:To identify angles on a straight line
Know:

  • How to use a protractor to measure angles.

Understand:

  • That all angles on a straight line add up to 180 degrees.

Do:

  • Find the angles on a straight line..

Angles on a Straight Line

Angles on a straight line always add up to 180 degrees.

Complementary and Supplementary Angles

Complementary angles add up to 90 degrees.

Supplementary angles add up to 180 degrees.


Teaching Ideas

Angle Videos

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