This worksheet explains the relationships between angles to students so that they are able to calculate the size of a missing angle using other information. This is a part of a larger unit designed to help your students learn how to estimate, measure, draw and compare angles.
Identify the relationships between angles on a straight line, angles at a point and vertically opposite angles; use these to determine unknown angles, communicating reasoning
Investigate, with and without digital technologies, angles on a straight line, angles at a point and vertically opposite angles. Use results to find unknown angles
Investigate, with and without digital technologies, angles on a straight line, angles at a point and vertically opposite angles. Use results to find unknown angles
Describes and represents mathematical situations in a variety of ways using mathematical terminology and some conventions
Measures and constructs angles, and applies angle relationships to find unknown angles
Measures and constructs angles, and identifies the relationships between angles on a straight line and angles at a point