Multiple choice general knowledge math & puzzles

How many equal sides does an icosahedron have?

  1. 20

  2. 15

  3. 10

  4. None of these
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A Correct answer
Explanation

A regular icosahedron has 20 faces, 30 edges, and 12 vertices. When the question asks about 'equal sides,' it refers to the 20 triangular faces, all of which are congruent (equal in size and shape) in a regular icosahedron. Each face is an equilateral triangle.

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