45 yay
Heavy Rotation - song - was created on 2010-08-18.
The angles of rotation for a regular 20-gon can be determined by dividing 360 degrees by 20, which equals 18 degrees. Therefore, the angles of rotation are multiples of 18 degrees: 0°, 18°, 36°, 54°, 72°, 90°, 108°, 126°, 144°, 162°, 180°, 198°, 216°, 234°, 252°, 270°, 288°, 306°, 324°, and 342°. Each of these angles represents a distinct rotation that maps the 20-gon onto itself.
For 360 deg. rotation (sidereal day), mars takes 41 minutes 18 seconds longer
If you mean a polygon with equal exterior angles of 18 degrees then it will have 360/18 = 20 sides.
In the UK you do not have to wait or be 18, you need to have a full licence or have someone with you with a full licence
The Earth does a complete rotation on its axis every day. The Earth's rotation is the reason why we have night and day. So, if today is the 18th, the Earth has rotated 18 times this month.
There are 18 holes on a full golf course.
Uranus (which, unlike other planets in our solar system, spins on its side) completes a rotation on its axis (day) in about 17 hours 14 minutes.
Maria Full of Grace was created on 2004-01-18.
Throat Full of Heart was created on 2008-01-18.
Full Alert - film - was created on 1997-07-18.
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