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You can never really be certain about the measure of an angle without using a protractor, or some similar tool.
Usually, you can try to "eyeball" it, though. Just remember that a right angle is the same as an angle in a square. It is also a quarter of a whole revolution.
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How are angles calculated?
by using a protractor
How do you solve an angles?
Using a protractor is the simplest way of solving the measurements of angles.
What is one way to find the sum of a quadrangle without using a protractor?
Using the formula: (number of sides -2)*180 = sum of interior angles
What is the absolute way of measuring angles?
Using a protractor helps
What is the use in measuring an angle?
Angles are measured using a protractor
How does someone measure angles?
You can onlymeasure angles by using a protractor.
Angles can be measured using a?
Protractor
How are angles calculated?
by using a protractor
How do you estimate angles?
by using a protractor
How do you make an angle without using compass and protractor?
By drawing regular polygons as for instance a square will have 4 equal right angles and an equilateral triangle will have 3 equal 60 degree angles.
How do you construct an angle 175?
A protractor is normally used to construct angles.
Measuring angles in a quadrangle?
It is done out using a protractor.
How do you solve an angles?
Using a protractor is the simplest way of solving the measurements of angles.
What is one way to find the sum of a quadrangle without using a protractor?
Using the formula: (number of sides -2)*180 = sum of interior angles
What is the absolute way of measuring angles?
Using a protractor helps
What is the use in measuring an angle?
Angles are measured using a protractor
How do you find the size of an angle without using a protractor?
If the angle is a lone, random angle, I believe you would need a protractor to determine the precise size of the angle (in "degrees"). However, you could, in this case, roughly guess as to whether the angle is acute, obtuse, or right (if the little rectangle is shown in the angle). Of course, if an angle is in a position where one can determine its measure using known postulates or theorems, finding the size of this angle becomes much easier. For example, if you know the measure of one angle and you must determine the measure of another angle, but these two angles are vertical angles, or are corresponding angles (by the corresponding angles postulate), you can indeed determine the measure of this angle without a protractor. Additionally, another example is that if you knew a pair of angles were either supplementary angles, complementary angles, or a linear pair, and you were given the measure of one of these angles, you could determine the measure of the other angle without a protractor. Therefore, it depends on the angle you're looking at.
