Order of rotation and angle of rotation of circle
Asked by admin @ in Math viewed by 327 People
What is the angle of rotation of semi-circle,circle,rectangle and parallelogram
Answered by admin @
ANGLE OF ROTATION - A measurement of the amount, the angle by which a figure is rotated counterclockwise about a fixed point often the center of a circle.
360° - A rotational symmetry in which the point is moved about the objects and fit in itself more than once. This is a symmetry of order one.
Let n be the order of rotation for each shape, then
Angle of rotation =360°/n
Circle=infinite order
Rectangle =order2
Semicircle =order1
Parallelogram =order2
ANGLES OF ROTATION ARE
Circle=Infinity
Rectangle =360°/2=180°
Semicircle =360°/1=360°
Parallelogram =360°/2=180°
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