Form 2 · Mathematics

Polygons

Mastering the properties of interior and exterior angles is essential because PT3 examiners love testing your ability to calculate the number of sides for complex irregular polygons. Most students lose easy marks by forgetting the simple sum of exterior angles rule so make sure you memorize those formulas before diving into the practice questions.

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Other Mathematics chapters

Patterns and Sequences Factorisation and Algebraic Fractions Algebraic Formulae Circles Three-Dimensional Geometrical Shapes Coordinates Graphs of Functions Speed and Acceleration Gradient of a Straight Line Isometric Transformations Measures of Central Tendencies Simple Probability

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