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Year 11 maths · F.1 · Polygons

Find the angles of a regular polygon

Exterior angles add to 360°, and each interior angle is 180° minus its exterior angle.

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  1. What is each interior angle of a regular polygon with 90 sides?

    Answer: 176

  2. What is each interior angle of a regular polygon with 6 sides?

    Answer: 120

  3. Each exterior angle of a regular polygon is 6°. How many sides does it have?

    Answer: 60

Tip: Exterior angles add to 360°, and each interior angle is 180° minus its exterior angle.

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