When they are congruent or of the same sizes
Yes, vertical angles do have the same measures.
They are equal (or 'congruent') angles.
Two or more angles that have the same measure are called congruent angles.
because , since each angle measures the same then all of th angles are the same size :p
An enlargement changes the sides but keeps the same angles
It is an equilateral triangle that has 3 equal interior angles of 60 degrees
They are equal angles.
Angles are considered parallel when their angle measures are the same. These angles are parallel because they are both 180*.
There need not be any relationship at all.
Trigonometric ratios are characteristics of angles, not of lengths. And, by definition, the corresponding angles an similar triangles have the same measures.
The equilateral triangle.
No, I learned that in 6th grade