Grade 11 · Geometry · 93 pages · PDF

Trigonometry

Clear, exam-focused notes on SOH CAH TOA, exact values, elevation and depression, bearings and 3D problems, with fully worked examples.

A complete 26-page IGCSE guide to right-angled trigonometry. It starts with labelling the opposite, adjacent and hypotenuse, then teaches SOH CAH TOA for finding missing sides and missing angles. It also covers the exact values for 0°, 30°, 45°, 60° and 90°, and shows how to derive them from two special triangles. Later sections apply trigonometry to angles of elevation and depression, bearings, isosceles triangles, rhombuses and 3D problems with cuboids and pyramids. A final section explains how to choose between Pythagoras and trigonometry. Every method comes with clear diagrams and step-by-step worked examples. It ends with a summary, a keyword guide and exam tips.

What's in the pack

Every item can be bought on its own. Buy several together and the price drops.

• Main Notes · 27 pages

  Main Notes

  The full notes: one idea per page, a worked example beside every rule.

  Read the first 4 pages
  €9.99Add

• Cheatsheet · 1 page

  Cheatsheet

  The whole topic on a page or two, for the night before.

  Read the first page
  FreeAdd for free

• Worksheet · 36 pages

  Worksheet

  Practice questions in the order the notes teach them.

  Read the first 6 pages
  €11.99Add

• Solutions · 29 pages

  Solutions

  Every worksheet question worked in full.

  Read the first 6 pages
  €9.99Add

Topics covered

• Labelling opposite, adjacent and hypotenuse
• The trigonometric ratios (SOH CAH TOA)
• Finding missing sides
• Finding missing angles
• Exact trigonometric values
• Angles of elevation and depression
• Bearings and trigonometry
• Trigonometry in isosceles triangles
• Trigonometry in quadrilaterals
• Trigonometry in 3D (cuboids and pyramids)
• Choosing between Pythagoras and trigonometry
• Multi-step real-world problems

Format

Print-ready PDF

Items

4

Delivery

By email