two
2
If I understand the grammar correctly, the answer is one line.
That's the one usually called the ' x-axis ', but more formally known as the abscissa axis. It divides the plane into the upper/positive half and lower/negative half, and the numbers on it measure how far left or right of center a point is.
Its when a plane gets cut in half by Godzilla, and then its just laying there on the ground open.
Yes. If points are on the same side of a line, they are in a half-plane.
2
-- A line has no plane and no part of one. -- Regarding a plane, go back and look at that word "half" again.
boundary line
Yes, two planes. Each of them divides the seam in half.
In general no. The intersection of two parallel half-planes A and B is either a half-plane (either A or B, when A and B have similar orientation) or the empty set (when A and B have opposite orientation). When A and B are not parallel, their intersection is a maximal open region bounded by the two lines that define A and B, respectively. In this case, the intersection always exists and it is never a half-plane.
8
you fold the paper in half and you fold it verticaly and you fold it verticaly again and you've got your paper plane.
If I understand the grammar correctly, the answer is one line.
A satellite in low orbit takes one and a half hour. A plane takes much longer, depending on the speed. Some supersonic planes can make it in less than 24 hours.A satellite in low orbit takes one and a half hour. A plane takes much longer, depending on the speed. Some supersonic planes can make it in less than 24 hours.A satellite in low orbit takes one and a half hour. A plane takes much longer, depending on the speed. Some supersonic planes can make it in less than 24 hours.A satellite in low orbit takes one and a half hour. A plane takes much longer, depending on the speed. Some supersonic planes can make it in less than 24 hours.
There are more solutions in a half plane
A cylinder and a cone have infinitely many planes of symmetry because of the circular face. However, a cylinder can also be cut in half lengthwise (imaging cutting a soda can in half), while a cone cannot (imagine cutting a ice cream cone in half). Therefore, a cylinder has one more plane of symmetry than a cone.
That's the one usually called the ' x-axis ', but more formally known as the abscissa axis. It divides the plane into the upper/positive half and lower/negative half, and the numbers on it measure how far left or right of center a point is.