Perimeter, area and volume.
Measure boundaries, regions and space using clear diagrams, sensible units and useful two-dimensional representations.
Work through the topic
Learn the method, follow the examples, then try the worksheet.
- 01
Metric units and appropriate precision
Choose useful metric units, convert them correctly and report a measurement with sensible precision.
- 02
Perimeter
Find the length around a shape, including boundaries with missing sides and practical fencing problems.
- 03
Area of rectangles, triangles and parallelograms
Use a base and a perpendicular height to find the area of rectangles, triangles and parallelograms.
- 04
Radius, diameter, circumference and the meaning of pi
Connect radius, diameter and circumference, and use pi to describe the boundary of a circle.
- 05
Nets and views of solids
Recognise valid nets and connect flat faces with the front, side and top views of a solid.
- 06
Rectangular/triangular prism volume
Find a prism volume by multiplying the area of a constant cross-section by the distance between its ends.
- 07
Choosing useful 2D representations of objects
Choose and interpret plans, elevations, labelled diagrams and nets for different practical purposes.
Topic review
Revisit the key ideas, then choose a practice paper.