AC9M8M03 • Year 8 Maths

Solve problems involving the circumference and area of a circle (AC9M8M03)

recognise situations, including financial contexts, that use integers; locate and represent integers on a number line and as coordinates on the Cartesian plane

Choose a learning activity. Homework, Practice and Test use the same eight-question unit bank.

60-second Quick Read

  • solve problems involving the circumference and area of a circle using formulas and appropriate units
  • Example: deducing that the area of a circle is between 2 radius squares and 4 radius squares, and using 3\timesradius^2 as a rough estimate for the area of a circle
  • Common trap: investigating the area of circles using a square grid or by rearranging a circle divided into smaller and smaller sectors or slices to resemble a close approximation of a…