## Exam Style Question## Worked solutions to typical exam type questions that you can reveal gradually |

Question id: 287. This question is similar to one that appeared in a GCSE Higher paper in 2017. The use of a calculator is allowed.

A number of regular pentagons and squares are arranged around the outside of a large blue regular polygon. Just the lower part of the arrangement is shown below.

How many sides does the large blue regular polygon have?

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If you need more practice try the self-checking interactive exercises called Polygon Angles.

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