Illustration showing the diameter of a circle inscribed in a right triangle is equal to the difference…
Illustration where one leg of a right triangle is the diameter of a circle. The tangent at the point…
Illustration showing that from any point in the circumference of a circle, a chord and a tangent are…
Illustration showing an equilateral triangle inscribed in a circle.
Illustration showing a circle with an inscribed and circumscribed quadrilateral.
Illustration showing a circle with an inscribed quadrilateral and triangles formed by extended chords.
Illustration of the construction used to circumscribe a circle about a given triangle.
Illustration of the construction used to inscribe a circle in a given triangle.
Illustration of the construction used to draw a tangent to a given circle through a given point.
Illustration of the construction used upon a given straight line, to describe a segment of a circle…
Illustration used to construct a circle that shall pass through a given point and cut chords of a given…
Illustration used to construct a circle when given two points that it passes through and a radius.
Illustration showing a line with a midpoint drawn from a given exterior point to a given circumference.
Illustration showing a line that remains parallel to a given line, and touches at one end a given circumference.
Illustration showing a line that moves so that its ends constantly touch two fixed lines which are perpendicular…
Illustration showing a circle with an inscribed triangle and radii.
Illustration showing a circle with equilateral triangles and another circle within.
Illustration used to construct a common tangent when given two circles.