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180 degrees

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13y ago
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Q: What is the angle between the vectors A and -A when they are drawn from a common point?
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When two vectors A and B are drawn from the same point the angle between them is phi If A and B have the same magnitude which value of phi will their vector sum have the same magnitude as A or B?

120 degrees. Go mountaineers!


What is different between 1st angle and 3rd angle?

Basically its just where you position the views of the main object, in first angle projection, if you view the object from the left, the view is drawn to the right of the object, in third angle projection, its drawn on the viewing side.


Which is accurate in adding vectors graphical or arithmetic?

graphical is accurate because the vectors added are drawn according to a specified scale.


What is the angle between vector a and vector b if vector a and vector b denote the adjacent sides of a parallelogram drawn from a point and area of parallelogram is half of ab?

Suppose the angle between the vectors is q Then area of the parallelogram = a*b*sin q Therefore a*b*sin q = 0.5*a*b sin q = 0.5 So that q = pi/6 radians or pi*5/6 radians (30 deg or 150 deg).


What is the difference between an arc and an angle?

An angle is measurement use to tell the distance between two lines that are concurrent at a point. An arc is the length of a curve drawn with a unchanging distance (radius length) around a point..


Can two angles be congruent even though the drawn sides of one angle are longer then the drawn sides of the other angle?

Yes. The side lengths for angle measures don't count.


What is auto-graphic projection in tachnical drawing?

In first angle auto graphic projection the planed, view is drawn exactly below the front elevation. What is viewed from the left is drawn from the right side of the front, it is drawn in the 1st angle and 3rd angle.


What quadralaterals have one right angle?

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A miter line is drawn at an angle of?

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What angle are ' cross-hatch' lines normally drawn?

Cross-hatch lines used in Architectural drawings are normally drawn at a 45 degree angle.


How are angles formed?

An angle is formed by at least three points of reference. The origin and two others in plain geometry. A line may be drawn from the point of origin and any other given point. Any other line may be drawn from the origin and any other point. The difference between these lines is referred to as an angle.


Is it possible to show a drawn animated movie in 3D?

This depends if it is an animated movie, which has been been drawn and animated on a computer, then yes.But if it has been drawn as 2D as a flat image, from a downwards angle, then no.If it has been drawn from an angle then it is slightly possible.