Question

Three angles are congruent and adjacent and form a line. each angle measures____?

Answer 1

60 degrees

Explanation:

Given three adjacent and congruent angles that form a line as illustrated in the diagram below:

Let each of the angles = x

The sum of angles on a line = 180 degrees.

Therefore:

`\begin{gathered} x+x+x=180 \\ \implies3x=180 \\ \implies x=(180)/(3) \\ x=60\degree \end{gathered}`

Each of the angles measures 60 degrees.