Answer:
1.c
2.d
3.a
4.
5.a
6.c
7.d
8.d
9.a
10.
Step-by-step explanation:
1.Coplanar: when points or lines lie on the same plane, they are considered coplanar.
2.A theorem is a statement that has been proved, or can be proved.
3.No dimension, length, width or thickness
4.plane, is a surface where any straight line that
contains two points on the plane lies entirely on the plane. A plane extends indefinitely to all directions. (Think of a plane as a piece of flat paper that is infinitely large, have no thickness)
5.line has length but no width or thickness.A line is understood to extend indefinitely to both sides. It does not have a beginning or end.
6.Postulate. A statement about geometry that is accepted as true without proof.
7.The intersection of a line and a plane is a point that satisfies both equations of the line and a plane. It is also possible for the line to lie along the plane and when that happens, the line is parallel to the plane.
8.An intersection of two lines is a point where the graphs of two lines cross each other.
9.?
10.a line. If the planes do not intersect, they are parallel. They cannot intersect at only one point because planes are infinite. Furthermore, they cannot intersect over more than one line because planes are flat.
Pabrainliest.