You are viewing a free preview of this lesson.
Subscribe to unlock all 10 lessons in this course and every other course on LearningBro.
Geometry questions on the CSSE 11+ maths paper test your knowledge of angles, 2D shapes, symmetry, and coordinates. The CSSE exam often combines geometry with reasoning — for example, asking you to work out an angle using several rules in sequence. This lesson covers all the key facts and methods you need.
| Angle type | Size | Description |
|---|---|---|
| Acute | Less than 90° | A sharp, small angle |
| Right angle | Exactly 90° | A square corner |
| Obtuse | Between 90° and 180° | A wide angle |
| Straight | Exactly 180° | A straight line |
| Reflex | Between 180° and 360° | More than a straight line |
You must learn these rules and apply them confidently in the exam.
Subscribe to continue reading
Get full access to this lesson and all 10 lessons in this course.