12. Geometry

12.01 2D shapes

12.03 Properties of shapes

12.04 Diagonals of shapes

12.05 Prisms, pyramids, and other 3D solids

12.06 Nets of solids

12.07 Name and classify angles

12.08 Estimate angles

12.09 Measure and compare angles

12.10 Angles and angle types

12.11 Angles on a straight line

12.12 Angles at a point

12.13 Vertically opposite angles

EXPLORE: Draw angles

EXPLORE: Constructing prisms and pyramids

Stage 3

12.11 Angles on a straight line

Interactive practice questions

Angles on a straight line add up to?

$90^\circ$90°

A

$180^\circ$180°

B

Easy

< 1min

Are the angles in the diagram below $supplementary$ ?

Easy

< 1min

Find the size of the missing angle.

Easy

< 1min

Find the size of the missing angle.

Easy

< 1min

Outcomes

MA3-16MG

measures and constructs angles, and applies angle relationships to find unknown angles

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