coins
wheels
planets
and so on ...
Not normally because an apex angle is found on an isosceles triangle.
Yes. The circles can be of different size. These are called concentric circles.
concentric circles
A cylinder has two circles as its bases.
Tangent circles are circles that touch one another without crossing. The distance between the centres of the circles must be equal to the difference or the sum of their radii.
There were 54 crop circles.
In circles in nature.
Crop circles have been found virtually on every continent in the world, with the majority found in the UK, Russia, Japan, US, Canada, Australia and throughout Europe.
Infinite
Hundreds of crop circles have been reported around the world. Many of these have later been found to be hoaxes but there still remain a percentage that have defied explaination.
Crop circles are most commonly found in the United Kingdom, particularly in areas like Wiltshire and Hampshire. These regions have a high number of reported crop circles due to the relatively large amount of farmland and open spaces.
2 circles and 1 rectangle
Although circles don't have beginnings or endings, they can be found at 66.5622 degrees north and south latitudes, respectively.
Not normally because an apex angle is found on an isosceles triangle.
Many times when UFO sightings are reported, crop circles are found nearby. But as far as I know nobody has ever seen aliens make crop circles.
No. Those are found on the polar circles, and Mexico is nowhere near any of them.
Crop circles typically appear in fields of cereal crops, like wheat, barley, or corn. They are found worldwide, but are most commonly reported in the United Kingdom.