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In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle.It is a circular arc that measures 180° (equivalently, π radians, or a half-turn).
Archimedes introduced the salinon in his Book of Lemmas by applying Book II, Proposition 10 of Euclid's Elements.Archimedes noted that "the area of the figure bounded by the circumferences of all the semicircles [is] equal to the area of the circle on CF as diameter."
The lune of Hippocrates is the upper left shaded area. It has the same area as the lower right shaded triangle. In geometry, the lune of Hippocrates, named after Hippocrates of Chios, is a lune bounded by arcs of two circles, the smaller of which has as its diameter a chord spanning a right angle on the larger circle.
The twin circles (red) of an arbelos (grey) In geometry, the twin circles are two special circles associated with an arbelos.An arbelos is determined by three collinear points A, B, and C, and is the curvilinear triangular region between the three semicircles that have AB, BC, and AC as their diameters.
An arbelos (grey region) Arbelos sculpture in Kaatsheuvel, Netherlands In geometry, an arbelos is a plane region bounded by three semicircles with three apexes such that each corner of each semicircle is shared with one of the others (connected), all on the same side of a straight line (the baseline) that contains their diameters.
NEW YORK (Reuters) -Donald Trump may seek dismissal of the criminal case in which he was convicted in May of 34 felony counts involving hush money paid to a porn star, a judge ruled on Friday ...
Let O 1 and O 2 be the centers of the two circles, C 1 and C 2 and let r 1 and r 2 be their radii, with r 1 > r 2; in other words, circle C 1 is defined as the larger of the two circles. Two different methods may be used to construct the external and internal tangent lines. External tangents
2. Leg Curl. What it targets: Hamstrings. Why it rocks: This is a fantastic machine to help you improve knee stability and enhance lower body power, especially for runners. With stronger ...