Te reo Māori terms
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Master Teaching Guide coverage for this objective.
Resources
- CorbettMaths - Angles in PolygonsQuestions PDF · Answers
Terminology
- Interior angle
- Exterior angle
- Regular polygon
- Irregular polygon
- Linear pair
Task goals
- Calculate the sum of the interior angles of any polygon using $(n-2) \times 180°$.
- Calculate the sum of the exterior angles of any polygon, and recall that it is always $360°$.
- Find the size of each interior angle of a regular polygon.
- Find the size of each exterior angle of a regular polygon.
- Use a known interior or exterior angle to find the number of sides of a regular polygon.
- Use the fact that an interior angle and its exterior angle form a linear pair (sum to $180°$) to find a missing angle.
Key skills
- Calculate interior angle sum of polygon
- Calculate exterior angle sum of polygon
- Find interior angle of regular polygon
- Find exterior angle of regular polygon
- Find number of sides from an angle
- Apply linear pair relationship between interior and exterior angles
Quick stats
- 81 total questions
- 3 difficulty levels
- Answers included
For teachers
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