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Estimating is an art, but skilled craftsmen are often very good at it. In constructed sites angles are usually 90o or simple fraction of 90o (45o, 22.5o or 30o or 60o). Estimating these is simple, look at the angle, if it is less than 90o (less than the square angle formed by the edge of a book) ask yourself if it appears to be half that angle (45o) or half of that angle again (22.5o) which is the angle in 8 sided windows. An angle bigger than 45o is likely to be 60o, an angle smaller than 45o but bigger than 22.5o is likely to be 30o.
The estimation of angles of natural objects (trees etc) or of random drawn angles is done in the same way.
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Why is it important to estimate the size of an angle before measuring it?
To determine if the angle is < or> than 90 degrees so proper scale can be used
In triangle ABC ,angle A=x degrees and angle B=2X degrees,What is the size of angle C?
10001/999900
What is the size of each angle in a regular 25 sided shape?
Exterior angle = 14.4 degrees Interior angle = 165.6 degrees
What is the size of a obtuse angle?
An obtuse angle is greater than 90 degrees.
What is the geometric definition of a right angle?
A right angle's size is 90 degrees
Why is it important to estimate the size of an angle before measuring it?
To determine if the angle is < or> than 90 degrees so proper scale can be used
The number of degrees in a angle?
It is a measure of the size of the angle.
In triangle ABC ,angle A=x degrees and angle B=2X degrees,What is the size of angle C?
10001/999900
If a clock shows 9 o'clock which size is the inside angle between the two hands?
the angle size is 90 degrees
What is the size of one interior angle in a regular octagon?
135 degrees and its exterior angle is 45 degrees
What is the size of each angle in a regular 25 sided shape?
Exterior angle = 14.4 degrees Interior angle = 165.6 degrees
What is the measuring unit for angle size?
Degrees
What does supplement mean in math?
A supplement to an angle in Geometry is a second angle with a size equal to the difference between 180 degrees and the size of the first angle. If the size of two angles is 180 degrees, then the angles are 'supplementary".
What is the size of an acute angle?
An acute angle is larger than than 0 degrees but less than 90 degrees (a right angle).
What is the size of a obtuse angle?
An obtuse angle is greater than 90 degrees.
What is the geometric definition of a right angle?
A right angle's size is 90 degrees
If a right-angled triangle has 1 angle equal to 30 degrees what size is the remaining angle?
The angles are: 90 degrees, 30 degrees and 60 degrees
