### Lesson Details

**Name:**Semi-Circles & Subtended Angles**Code:**M.4.11.CT.3**Specification Reference:**G10**Keywords:**Subtended, semi-circle, angle, centre, circumference, right angle.**Objectives:**1. To define the term ‘subtended’ and discover the rule for angles in semi-circles. 2. To learn the theorem involving the angle at the centre and circumference. 3. To solve problems involving these two theorems.**Competency:**To define the term ‘subtended’ and discover the rule for angles in semi-circles.**Proficiency:**To learn the theorem involving the angle at the centre and circumference.**Mastery:**To solve problems involving these two theorems.

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