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when you have only one line of symmetry its called half symmetry because there isn't anymore lines.....

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15y ago

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What is one word that has rotational symmetry?

"DEED" is a word that has rotational symmetry.


What is a piece of paper with only one side?

I think you are describing what is called a "mobius strip". It has two sides, but if you try to draw a line on it, you eventually find that the line is on both sides.It can be made as follows: Cut a 2" wide strip of paper at least 18-24" long. Make a circle, or loop with it. Turn one end over once, and then attach the ends. That's a mobius strip.


What is the name of the imaginary line 180 degrees east and west of the Prime Meridian where the date becomes one day earlier to the east of the line?

The imaginary line 180 degrees east and west of the Prime Meridian is called the International Date Line. Crossed from west to east, the date moves back by one day.


What is the line called that separates the dark half from the light half of the earth?

The line that separates the dark half from the light half of the Earth is called the terminator. This line represents the boundary between day and night, where the sun's light is directly illuminating one side of the planet while the other side remains in shadow. The position of the terminator changes throughout the day as the Earth rotates on its axis.


What is the imaginary line drawn on the earth above which the sun will not set for at least one day?

The imaginary line is called the Arctic Circle. North of the Arctic Circle, in regions like northern Norway, Sweden, and Finland, the sun does not set for at least one day during the summer solstice in June.