Question

unit 1 quiz 1
geometry a / unit 1 - the basics of geometry

1. choose the best answer.

which choice names a ray?
a
\\( \overleftrightarrow { a b } \\)
\\( \overleftrightarrow { a c } \\)
\\( \overrightarrow { b c } \\)

1. choose true or false.

euclidean geometry is based on the postulates of euclid
true
false

Explanation:

A ray is a part of a line that has one endpoint and extends infinitely in one direction. The notation for a ray is an arrow with one endpoint. For example, \(\overrightarrow{BC}\) has endpoint \(B\) and extends infinitely through \(C\). \(\overleftrightarrow{AC}\) is a line (extends infinitely in both directions), \(\overline{AB}\) is a line segment (has two endpoints). Just the letter \(A\) is a point. Euclidean geometry is indeed based on the postulates of Euclid.

Answer:

1. \(\overrightarrow{BC}\)
2. True