The sides of the triangle will always meet at angles such that two of them will appear 'diagonal'. But these are not defined as diagonal lines.
There are actually no diagonals intersecting any triangle. Try drawing one and connecting the vertices - it doesn't work and you simply end up tracing over the lines that define the triangle.
None
angles...
The only polygon with no diagonal is the triangle.
What you do is for example on a cube the lines are diagonal and on a normal square the line is strait! In every 3d shape or anything there is always a diagonal line.
Yes. Always
zero
None
angles...
Not always, sometimes they are perpendicular.
An equilateral triangle.
A triangle is 3 lines or sides connected together at their ends. These lines are not always the same lengths.
No
If at least two of the three lines are parallel, the three lines will not form a triangle.
The only polygon with no diagonal is the triangle.
yes * * * * * No. In a polygon (a plane shape with sides which are straight lines), a diagonal is a line from one vertex to another provided it is not already a side of the polygon. In a triangle, the only lines which can join two vertices are sides of the triangle. Therefore they are not diagonals: that is, a triangle (right angled or not) cannot have diagonals.
diagol lines a slanted linesA diagonal line is a lines which is a slanted line
you talk about how a triangle's line is diagonal.