equilateral
A congruent angle can also mean equal angle. So there is no set measurement of a congruent angle. Just the same as the angle it is equal to.
No. An inclinometer only measures vertical angle with respect to gravity. A theodolite adds measurement of horizontal angle to that measurement.
yes
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.
The two sides (or angles) are said to be congruent.
It depends on the angle not all obtuse angles measure the same. To measure an angle you use a protractor.
Two angles that are congruent have the same angle measurement.
The total angle measurement is 720 degrees.
The angles of a polygon are not directly related to the measurement of the perimeter. If you measure a perimeter of a pentagon in inches and then again in centimetres, the measurement number will change but the pentagon will remain the same.
67.5 degrees
Not possible. There are an infinite number of triangles that all have that same one angle in them.
By knowing the measurement of the angle.