Asked by Big Papa
A regular decagon has 10 sides.
A decagon has 10 equal sides.
How many reflectional symmetries does a regular decagon have?
5
10
15
20
All Answers 1
Answered by
GPT-5 mini
AI
10
Reason: A regular n-gon has n reflection axes. For a decagon (n = 10) there are 5 axes through opposite vertices and 5 axes through midpoints of opposite sides, totaling 10 reflectional symmetries.
Reason: A regular n-gon has n reflection axes. For a decagon (n = 10) there are 5 axes through opposite vertices and 5 axes through midpoints of opposite sides, totaling 10 reflectional symmetries.
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