a bearing is the angle from north moving clockwise 360 degrees a negative bearing is moving counterclockwise from north
When using autocad, 0 degrees was at 3 o' clock, then go anticlockwise for positive, clockwise for negative
obtuse angle * * * * * The complement of an angle greater than 90 degrees is not an obtuse angle! It would be a negative angle, whose measure would be 90 minus the angle whose complement you require. This would only make sense if the direction in which the angles were measured were fixed. For example bearings, which are always measured in the clockwise direction.
Sometimes called rotation symmetry, or symmetry of rotation. If you have an object that can be turned through a certain angle (like rotating a cube through 90o) and then it looks identical, then that object has a certain symmetry under rotation. If you can turn it through any angle, like a cylinder, then it has rotation (or rotational) symmetry.
A rotation turns a shape through an angle at a fixed point as for example if you turn around backwards that will be a rotation of 180 degrees.
Clockwise.
An angle is a measure of turn. the amount of turn is the magnitude, measured in degrees, and direction of turn can be clockwise or anti-clockwise. A positive angle turns in an anti-clockwise direction while a negative angle turns in a clockwise direction.
Because 180 degrees clockwise is the same as 180 degrees counterclockwise.
A bearing is a clockwise rotation from the North to the angle of the object.
Certainly. A negative angle is simply clockwise instead of counterclockwise from the zero angle, but this is usually not indicated as such on a drawing.
72
An angle is positive when it is measured in a counter-clockwise direction. It is negative when it is measured in a clock-wise direction.
In the Cartesian plane, an angle is measured in the anti-clockwise direction from the x-axis. A negative angle is measured in the clockwise direction from the x-axis. However, an angle is effectively the same if you add or subtract 360 degrees. So, if you are faced with a negative angle just keep adding 360 degrees until you have a positive value.
9
a bearing is the angle from north moving clockwise 360 degrees a negative bearing is moving counterclockwise from north
Yes. Angles may be measured from the direction of the positive horizontal axis and, clockwise is negative, anticlockwise is positive.
It is believed that Venus was struck by another large body. The angle of impact affected its rotation, which was likely similar to Earth and the other planets. Its counter-clockwise rotation was stopped and it now spins very, very slowly clockwise (east to west) as seen from the north.