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A part of a circle named by its endpoints?
An arc is a part of a circle that is defined by its endpoints. It is a segment of the circumference of the circle.
What does a Arc look like?
An arc is a portion of a curve defined by two endpoints and the points along the curve connecting them. It is a section of a circle's circumference or any other curved shape. The shape of an arc resembles a segment of a curve or part of a circle.
How many longitude lines are there between each meridian line?
"Lines of longitude" are conceptual, not physical; there can be as many as we want. For example, there are 3600 "seconds of longitude" between each degree of longitude. That's 60 minutes of arc per degree, and 60 seconds of arc per minute.
How many seconds are there in one degree of longitude?
There are 60 minutes in a degree and 60 seconds in a minute, so a degree has 3600 seconds. These are arc minutes and seconds, no relation to time measurements. A circle has 360 degrees.
A half circle of 180 degrees of arc which connects the earth's poles is known as?
The half circle of 180 degrees of arc connecting the Earth's poles is known as a great circle. This is the largest circle that can be drawn on a sphere and it divides the sphere into two equal hemispheres.
