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Perpendicular bisector of a line.

A. B. Join up the points where your circles cross. Perpendicular bisector of a line. Draw the same size circle with centre B. Draw a circle with centre A. Perpendicular Bisector. Perpendicular from a point to a line. Draw an arc with the point as the centre.

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Pythagorean Spiral

Pythagorean Spiral. Or the Wheel of Theodorus. Wheel of Theodorus. Theodorus was born about 100 years after Pythagoras. Theodorus used right triangles to create a spiral. Today the spiral is known as the Wheel of Theodorus. This is a Pythagorean Spiral. What pattern do you see?.

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258 views • 9 slides

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Perpendicular bisector of a line.

Pythagorean Spiral