ECZ 2019 · GCE Paper 1 — Symmetry

The diagram shows a prism with a base that is a regular hexagon. How many planes of symmetry does it have?

Verified working — step 1

Count the planes in two families: the lengthwise ones inherited from the base, plus the one crosswise slice.

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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