Question

What are the measures of 21 and Z2? Explain.
I need help please help me

Answer 1

The measure of
`\angle 1` is
`60^(\circ)` because it is related to one of the angles of the triangle by the alternate interior angles theorem.

The measure of
`\angle 2` is
`120^(\circ)` because it is adjacent to one of the angles in the triangle.