One theorem named for Thales (THAY-leez) concerns right angles formed by three points on this shape.
One theorem named for Thales (THAY-leez) concerns right angles formed by three points on this shape. The construction of one of these shapes tangent to three others is the subject of Apollonius' Problem. This curve is formed by the perpendicular intersection of a plane with a (*) cone's axis of symmetry, and in polar coordinates it is expressed as r equals a constant. Centered at the origin of a Cartesian plane, its equation is x squared plus y squared equals r squared. Name this set of points equidistant from a center.
One theorem named for Thales (THAY-leez) concerns right angles formed by three points on this shape.
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