Definition of Base Angle Theorem. Base Angle Theorem states that if two sides in a triangle are congruent, then the angles opposite to these sides are also congruent. 1  Base angles of an isosceles triangle are equal.
Restores the destroyed forest. The Spring Sprite is the protagonist of The Firebird Suite segment of Fantasia 2000. The Spring Sprite is a benevolent force of life and creation. She loves the forest and its creatures, and is happy to bring spring every year.
1969 Pontiac Firebird History. History for the 1968 Pontiac Firebird. Pontiac introduced the Firebird February 23, 1967, to compete with the Chevrolet Camaro (introduced September 29, 1966) and the Ford Mustang (introduced April 1964).