KS4 – MYP 4–5 Mathematics | Booklet 7.1: The Right Triangle

My original Grade 10 Mathematics Standard MYP teaching booklet on right triangles and trigonometry, supplied as a downloadable PDF.

Connect radicals, Pythagoras, special right triangles, trigonometric ratios, angles of elevation and depression, bearings, and contextual problem solving through notes, diagrams, examples and practice questions.

This is the original 60-page booklet, with all original questions, equations, diagrams and numbering retained. Four free YouTube lesson links are included. Two existing diagrams have been repositioned to keep the instructions and footer clear; no mathematical content has been rewritten.

Original-source clarifications: the small 30–60–90 diagram on page 15 labels both legs x; the longer leg should be x√3, as correctly shown in the table above. On page 41, the ladder problem diagram gives 3.5 m, while the text prints “3.5in”. Some original tasks contain incomplete givens or missing labels (pages 12, 14 and 21); these remain unchanged. The recordings and booklet also contain material beyond a single lesson.