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You will need... A set of compasses (for drawing the circle), and a straight edge.

First, draw the circle. Then - put the point of the the compasses on the line. Mark the circle where the pencil crosses it. Place the point on this intersection and repeat the action until you're back at your starting point.

Now - using the straight edge, join every alternate point to each other - forming an equilateral triangle.

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10y ago
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Q: How do you construct a equilateral triangle in a circle?
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