A+
exterior angle theorem
It can be almost any measure but the important thing to remember is that vertical angles are congruent, so any angle that is vertical to another has the same measurement as the angle it is vertical to.
a point on the bisector of an angle, it is equidistant from the 2 sides of the angle
No, it does not.
The Vertical Angles Theorem says that a pair of vertical angles are always congruent.
sea = NEP Apex.
Any two angles of a triangle determine the third angle. As a result, the side angle angle theorem is equivalent to the angle side angle theorem.
A+
It is Pythagoras' theorem
exterior angle theorem
An angle of 43 degrees cannot be a vertical angle. A vertical angle, by definition, is 90 degrees
what is the formula for a vertical angle
A straight angle is an angle of 180 degrees
The answer depends on which angle is given: whether it is the angle made by the sloping face with the base, or the angle at the apex or even the angle that the sloping face makes with the vertical. Essentially, though, you use Pythagoras's theorem or, equivalently, the sine rule.
90
No. Or at least, I think not.