No, an angle is not a polygon - lie a triangle - which is a closed plane shape bounded by straight lines.
A triangle must have straight lines.
The Right Triangle. Perpendicular lines make a right angle.
No parallel lines but a right angle triangle has perpendicular lines.
If you mean what type of triangle has perpendicular lines then it is right angle triangle.
If the shape has three straight lines and no other lines then it has to be a triangle
The measure of an exterior angle of a triangle is more than the measure of the intersection of two straight lines.
is a right angle that intersects and 3 lines of symmetry
It has a pair of perpendicular lines that meet at right angles to form the 90 degree angle of a right angle triangle.
A right angle triangle is a triangle with an angle 90 degrees. An isosceles triangle is a triangle with two or more equal angles/ length of lines. An equilateral triangle can also be an isosceles triangle.
Any area with just two straight edges can only be equivalent to an angle - no matter how small or large that angle is. A third edge is needed to create a closed space. Compare the difference between an angle, with two straight lines, and an enclosed triangle, with three straight lines.
two if the triangle has a right angle
There are no parallel lines in any triangle but a right angle triangle has perpendicular line that meet each other at 90 degrees.
The angle bisectors of a triangle are the lines which cut the inner angles of a triangle into equal halves. The angle bisectors are concurrent and intersect at the center of the incircle.
Straight ones... Not truly lines, but segments
No. A triangle is a closed shape made of three straight lines, joined at their endpoints forming three vertices and three angles (hence tri-angle).
If the lines are straight then it IS a triangle.
Straight lines are straight angles (180 degrees)