Geometry resources
Mathematics, grade 10. Notes, worksheets, videos, interactive tools and revision materials for this chapter.
Notes
Study notes
The chapter's lessons are the notes — read them in order, then use the resources below.
01Angles and angle factsNames of angles, angles on a line and around a point, and angles formed by parallel lines.Read lesson →02Triangles and quadrilateralsProperties of 2D shapes, angle sums in triangles and quadrilaterals, and symmetry.Read lesson →03Perimeter and areaPerimeter and area of rectangles, triangles, trapezia and compound shapes.Read lesson →04Circles and piCircumference and area of circles, with pi as the link between diameter and circumference.Read lesson →
Worksheets
Practice worksheet
Attempt every question before revealing the answer — that struggle is where learning happens.
Practice questions live inside each lesson — work through them there, then return for revision.
Videos
Watch and learn
Hand-picked searches to find a clear video explanation of each lesson.
Revision
Revision checklist
Can you explain each of these out loud, without looking? If not, re-read that lesson.
- Angles and angle facts: Names of angles, angles on a line and around a point, and angles formed by parallel lines.
- Triangles and quadrilaterals: Properties of 2D shapes, angle sums in triangles and quadrilaterals, and symmetry.
- Perimeter and area: Perimeter and area of rectangles, triangles, trapezia and compound shapes.
- Circles and pi: Circumference and area of circles, with pi as the link between diameter and circumference.
- Read each lesson's summary and re-do its practice questions from memory.