Property
An inscribed angle is said to intersect an arc on the circle. The arc is the portion of the circle that is in the interior of the angle. The measure of the intercepted arc (equal to its central angle) is exactly twice the measure of the inscribed angle.
This single property has a number of consequences within the circle. For example, it allows one to prove that when two chords intersect in a circle, the products of the lengths of their pieces are equal. It also allows one to prove that the opposite angles of a cyclic quadrilateral are supplementary.
Read more about this topic: Inscribed Angle
Famous quotes containing the word property:
“We do not deride the fears of prospering white America. A nation of violence and private property has every reason to dread the violated and the deprived.”
—June Jordan (b. 1939)
“Those whom the gods chose as their property must not consort with mortals.”
—Franz Grillparzer (1791–1872)
“It is as if being was to be observed,
As if, among the possible purposes
Of what one sees, the purpose that comes first,
The surface, is the purpose to be seen,
The property of the moon, what it evokes.”
—Wallace Stevens (1879–1955)