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Subjects / JC Graphics / Strand 1: 2D Graphics

Regular polygons

Construct regular polygons and calculate their interior and exterior angles.

In review 1st Year2nd Year Common
Helps to know first: Geometric constructions
17practice questions

Fill the gaps: 1 · Match the pairs: 1 · Multiple choice: 3 · Numeric answer: 9 · Put in order: 1 · Short answer: 2

Each question has up to three hints, a worked explanation, and is tracked in your progress and review plan.

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Numeric answer
What is the sum of the interior angles of a polygon with 18 sides?
Whole numbers, decimals (2.5) or fractions (3/4).
Hint 1

Draw diagonals from one corner to split the polygon into triangles.

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