no
a right triangle
It would be a straight line.
As a triangle - no. Only a straight line.
180 > x > 90: obtuse 180: straight 360 > x > 180: reflex
no
When any side of triangle is extended outwards then exterior angle is formed. Sum of this exterior angle and adjacent interior angle = 180o. If exterior angle = 180o(straight angle) then interior adjacent angle is 0o which is not possible. So exterior angle can't be straight angle.
It is a straight line which divides an interior angle of the triangle into two angles of equal measure.
No, an angle is not a polygon - lie a triangle - which is a closed plane shape bounded by straight lines.
A perpendicular bisector is a straight line that divides a side of a triangle in two and is at right angles to that side. An angle bisector is a straight line that divides an angle of a triangle in two.
A right angle triangle always has 2 acute angles within it.
Probably a right angle triangle because it has 2 straight sides that are perpendicular to each other
To trisect a right angle form an equilateral triangle with one vertex at the right angle and then bisect that angle of the equilateral triangle. (It is impossible to trisect a general angle using only compass and straight edge - the right angle is a specific exception.)
triangle
a right triangle
It would be a straight line.
If you mean by straight angel an angel of magnitude 180 degrees, then the answer is no. The sum of the three interior triangle angels is 180 and not only a single angel.