In Euclidean geometry, the isosceles triangle theorem, also known as the pons asinorum, states that the angles opposite the two equal sides of an isosceles triangle are equal. It is, in essence, the content of proposition 5 in Book I of Euclid's Elements.
Other articles related to "isosceles triangle theorem, theorem":
... The isosceles triangle theorem holds in inner product spaces over the real or complex numbers ... of this inner product space form of the theorem is equivalent to the statement about equality of angles ...
Famous quotes containing the word theorem:
“To insure the adoration of a theorem for any length of time, faith is not enough, a police force is needed as well.”
—Albert Camus (19131960)