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How can bio-sphere help you to remember the definition of biosphere?
Bio means life and sphere means earth so rememeber all living things of the earth make up the biosphere:) Jenna Leftwich
How do you calculate the volume of an irregular sphere?
We get the idea that an "irregular sphere" is not a sphere. At that point, we knowexactly what it isn't, but not much yet about what it is. So you have to reveal a lotmore about it before anyone can calculate its volume. Like, for example, less infoabout what the object is not like, and more definition of its actual shape.
How many faces does a sphere have?
none its a sphere just look at one and you can tell
Is it possible to draw two lines on a sphere that are parallel?
If by parallel, you mean two lines that do not intersect, yes, it is possible to draw them on the surface of a sphere. They will end up being circles, and most pairs will not be equal in size. If you add the idea that the two lines also continue to infinity to the definition, then you cannot draw such things on the surface of a sphere.
Why is there no such thing as 2 sided polygons?
actually, there is, depending on your definition of polygon, and your definition of a line segment. A line segment is the shortest path btwn two points, right? So take a sphere and pick any two points on that sphere. The shortest path between them on the surface of the sphere would be a "curve" along the surface, but it's the shortest path between the points, so it technally is a line segment. Take two of these line segments that intersect at two points, and there is your two sided polygon!
