If it is a linear system, then it could have either 1 solution, no solutions, or infinite solutions. To understand this, think of two lines (consider a plane which is just 2 dimensional - this represents 2 variables and 2 equations, but the idea can be extended to more dimensions).If the 2 lines intersect at a point, then that point represents a solution. If the lines are parallel, then they never intersect, and there is no solution. If the equations are such that they are just different ways of describing the same line, then they intersect at every point, so there are infinite solutions. If you have more than 2 lines then maybe some of them will intersect, but this is not a solution for the whole system. If all lines intersect at a single point, then that is the single solution for the whole system.If you have equations that describe something other than a straight line, then it's possible that they may intersect in more than one point.
Yes. If two planes are not coincident (the same plane) and are not parallel, then they intersect in one straight line.
yes
I have never come across the term "blunt" angle. The rays of an angle always meet at a point and there is no rounding of these rays so the only interpretation that I can put on a blunt angle is that it is an obtuse angle. IF that is the case, (and sorry if I have misunderstood), then a right angle is smaller.
Two lines that meet at one point is called an intersection. More than two seperae lines can be intersected at one point.
no they can't
no the definition is two lines intersecting once
wrong!
No. Ray= A finite beginning and no finite end. A ray is a linear projection in one direction. If three rays begin at the same point of origin they will never intersect again given their respective directions. Same goes for the situation of them beginning at different P.O.O's; it's only physically possible for them to intersect at one point then after. (Unless of course you bring into the picture mirrors and different mediums wherein the index could possibly cause them to reflect/refract and change their paths.. then they could possibly intersect at more than one point... BUT generally/simply speaking NO three rays cannot intersect at more than one point :-) )
Yes.. More than 3.
FALSE!!
In Euclidean plane geometry two infinitely long straight lines intersect at only one point
Sometimes. Not always.
Curves yes, straight lines no
Converging lens refers to a type of lens that is thicker at the center than at the edges, causing light rays passing through it to converge to a focal point. This focal point is where the light rays intersect after passing through the lens, creating a real image.
it has 4 vertices, a vertice is a point were two lines intersect
If it is a linear system, then it could have either 1 solution, no solutions, or infinite solutions. To understand this, think of two lines (consider a plane which is just 2 dimensional - this represents 2 variables and 2 equations, but the idea can be extended to more dimensions).If the 2 lines intersect at a point, then that point represents a solution. If the lines are parallel, then they never intersect, and there is no solution. If the equations are such that they are just different ways of describing the same line, then they intersect at every point, so there are infinite solutions. If you have more than 2 lines then maybe some of them will intersect, but this is not a solution for the whole system. If all lines intersect at a single point, then that is the single solution for the whole system.If you have equations that describe something other than a straight line, then it's possible that they may intersect in more than one point.