- Which is the longest line on the globe?
- Can a circle have a negative radius?
- Is a line imaginary?
- What is an imaginary circle?
- Is 0 a purely imaginary number?
- What’s the imaginary line called?
- Which is the imaginary line of the earth?
- What are the two types of imaginary lines?
- Is it possible for a circle to have a radius of 0?
- Is a circle a point?
- What is the real point?
- Are latitudes equidistant?
- Why do we draw imaginary lines?
- What are the five imaginary lines?
- What 2 imaginary lines meet at the North Pole?
Which is the longest line on the globe?
EquatorEquator: This is the king of all imaginary lines.
Circling the earth at its center, the equator is the world’s longest line at nearly 25,000 miles.
It divides the northern and southern hemispheres and exhibits distinct physical characteristics due to its unique gravitational pull..
Can a circle have a negative radius?
Radius of the circle is the distance from the center of a circle to a point on the circle. As distance is a scalar quantity it don’t have any direction. So radius of a circle cannot be negative. … Imagine a circle having a positive radius, say r = 5.
Is a line imaginary?
In complex geometry, an imaginary line is a straight line that only contains one real point. … is a straight line and the line is real or imaginary according as the coefficients of its equation are or are not proportional to three real numbers.
What is an imaginary circle?
An imaginary circle is one in which the radius is the square root of a negative number—i.e., imaginary.
Is 0 a purely imaginary number?
This is a slightly different usage of the word “imaginary”, meaning “non-real”: among the complex numbers, those that aren’t real we call imaginary, and a further subset of those (with real part 0) are purely imaginary. Except that by this definition, 0 is clearly purely imaginary but not imaginary!
What’s the imaginary line called?
Longitude, the prime meridian, the Tropic of Capricorn and the Tropic of Cancer. Any axis about which an object spins is an imaginary line. Mason–Dixon line, which informally marks pieces of the borders of four U.S. states: Delaware, Maryland, Pennsylvania, and West Virginia, once part of Virginia.
Which is the imaginary line of the earth?
equatorThe equator is an imaginary line drawn right around Earth’s middle, like a belt. It divides Earth into the Northern Hemisphere and the Southern Hemisphere.
What are the two types of imaginary lines?
The imaginary lines circling the globe in an east-west direction are called the lines of latitude (or parallels, as they are parallel to the equator). They are used to measure distances north and south of the equator. The lines circling the globe in a north-south direction are called lines of longitude (or meridians).
Is it possible for a circle to have a radius of 0?
If a point can be a circle, then nothing stops the point from being any regular shape. … A circle with a radius of 0 is just a point.
Is a circle a point?
A circle is a shape consisting of all points in a plane that are a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves in a plane so that its distance from a given point is constant.
What is the real point?
In geometry, a real point is a point in the complex projective plane with homogeneous coordinates (x,y,z) for which there exists a nonzero complex number λ such that λx, λy, and λz are all real numbers. are all real.
Are latitudes equidistant?
Imaginary lines running horizontally around the globe. Also called parallels, latitude lines are equidistant from each other. Each degree of latitude is about 69 miles (110 km) apart. Zero degrees (0°) latitude is the equator, the widest circumference of the globe.
Why do we draw imaginary lines?
The imaginary line around the globe are very important because are drawn for navigation and geographic information. These lines are helpful in determining location of an object around the globe. Distances of the objects are also found due to these lines.
What are the five imaginary lines?
You can use them, too.The Antarctic Circle. The Antarctic Circle lies three-quarters of the way between the equator and the South Pole.The Arctic Circle. … DEW Line. … The Equator. … The International Date Line. … Meridians.Parallels.The Tropic of Cancer.More items…•
What 2 imaginary lines meet at the North Pole?
Longitude is measured by imaginary lines that run around the Earth vertically (up and down) and meet at the North and South Poles. These lines are known as meridians. Each meridian measures one arcdegree of longitude.