1.6 Geometric Reasoning
Curriculum content
Similar shapes (lengths). Tutorial
Similar shapes (area and volume). Tutorial
Congruent triangles (not part of 1.6 but useful). Tutorial
Pythagoras' Theorem. Video tutorial 1, Video tutorial 2, video tutorial 3 moving away from right angled triangles. Revision notes. Revision questions, answers
Trigonometry. Video tutorial introduction to Trig, Finding missing sides video 1, Finding missing sides and angles video 2 and 3, Alternative video for finding missing sides.
Trig revision notes, Questions and answers
3D Trig and Pythagoras. Tutorial
Sine and cosine rule. Tutorial sine rule. Cosine rule
Circle theorems
Circles: segment area Video 63 Practice Questions Textbook Exercise
Circle theorems – theorems Video 64 Practice Questions Textbook Exercise
Circle theorems – examples Video 65 Practice Questions Textbook Exercise
Circle theorems proof: right angle in a semi-circle Video 65a Practice Questions
Circle theorems proof: angles at circumference\centre Video 65b Practice Questions
Circle theorems proof: angles in the same segment Video 65c Practice Questions
Circle theorems proof: cyclic quadrilaterals Video 65d Practice Questions
Circle theorems proof: alternate segment theorem Video 65e Practice Questions
Circle theorems proof: radius and tangent proof Video 65f Practice Questions
Circle theorems proof: Textbook Exercise
All circle theorems in one video. Play