Exam-Style Question on Angles
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 287. This question is similar to one that appeared on 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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