Are we talking triangle or parallelogram? 110o or 145o respectively
Each interior angle of a regular 10 sided decagon measures 144 degrees
Each interior angle of a regular 45-gon measures 172 degrees
20o & 160o
In a triangle, each angle is opposite to one side. The size of the angle is related to the length of the side opposite to it; larger angles correspond to longer sides. Thus, each of the three angles in a triangle is uniquely associated with one of the triangle's three sides.
162o
90 Degrees
140 degrees
You get three angles that are each one third of the original angle. Note that it is impossible to give a general procedure to trisect any angle by using compasses and straight edge alone. There are special cases which are possible, eg a right angle (90°).
The vertex angle of an isosceles triangle is equal to the measure of each of its base angles. Therefore, if one of the base angles measures 42 degrees, then the vertex angle also measures 42 degrees.
To measure an angle on a wall accurately, use a protractor. Place the protractor on the corner of the angle and align the baseline with one side of the angle. Read the measurement where the other side of the angle intersects the protractor. This will give you the accurate measurement of the angle.
A protractor is one of them
If the triangles are similar, then each of the three angles in one of them is equal to the corresponding angle in the other one.