Question

An angle is a union of....​

Answer 1

Answer:

An angle is the union of two rays with a common endpoint. The common endpoint of the rays is called the vertex of the angle, and the rays themselves are called the sides of the angle.

[asy] draw((0,0)--(3,5),EndArrow); draw((0,0)--(5,0),EndArrow); [/asy]

Answer 2

An angle is the union of two noncollinear rays with a common endpoint. The common endpoint is called the vertex of the angle, and the rays are called the sides of the angle.