Platelets are a type of blood cell which prevent excessive blood loss. They stick together to create blood clots, and are manufactured 'to order' when we bleed.
The poles.
they are both the same lines.
#1. To know where they are. #2. To help them figure out how to get where they're going.
'Lines' can be drawn at any eatitude, wherever you want them. They don't even have to be evenly spaced. There is no standard, official, blessed set of 'lines' that everybody must use. Some maps and globes have 'lines' printed every 10 degrees, some have them printed every 15 degrees, some have them printed every 30 degrees, and some maps and globes don't have any lines printed on them at all. The mapping software that I use can print lines on the map spaced 2 seconds (0.000056 degree) apart if I want them. That's 324,000 'lines' of latitude between the north and south poles, and 648,000 'lines' of longitude around the equator. I've never needed them.
The dark lines are absorption spectrum, the energy absorbed by Atoms in the atmosphere of the star. ================================ Fraunhofer's spectral lines.
A shape with 4 straight lines in which there are 2 parallel and 2 unparallel lines is called a Trapezium.
2 lines that do not and will not intersect are called parallel lines.
2 lines of symmetry
Any 2 lines can intersect providing that they are not parallel lines
2 Lines.
2 Lines in the same plane that do not meet are parallel. If 2 lines are in different planes and do not meet, then they are called skew lines.
A rectangle.
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First of all, your grammar is terrible. The question should be "Does a triangle have 2 lines of symmetry and 2 lines of rotational symmetry? and the answer is no. A triangle can not have 2 lines of rotational symmetry, because you only rotate the image, you do not use any lines.
Rectangle
2 perpendicular lines are called 2 pwrpendicular lines it is sorry <:(
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