Topic summary · IGCSE handout
Area and Volume summary
Mixed area and volume problems combine 2D nets with 3D measures — keep formulas listed and units cubed or squared as required.
Files: 38_area_and_volume_handout.pdf · 38_area_and_volume_handout_answers.pdf · free public downloads · diagrams in the PDFs
Key learning points
- Surface area: sum the faces (nets help).
- Volume of prism = cross-sectional area × length.
- Watch unit conversions before comparing answers.
Worked example 1 — Cuboid surface area
Cuboid . Surface area?
Working
Sum of all face areas.
Worked example 2 — Cylinder volume
Radius , height . Volume in terms of ?
Working
.
Worked example 3 — Sphere volume
Radius . Volume in terms of ?
Working
Cube the radius carefully.
Scaffolded Learning Sheet and answers (PDFs)
This page is a short, searchable overview for revision and search engines. Use the Scaffolded Learning Sheet first, then the Answers PDF for a full written solution. The printable PDFs remain the main classroom resource.
