It is pi/10 radians ( = 36 degrees).
If the 58°-angle is one of the base angles, then the vertex angle is 64°.If the 58°-angle is the vertex angle, then the vertex angle is 58°.
It is: 180-vertex angle = exterior angle
If each base angle is 56°, then the vertex angle is 68°.If both base angles combined total 56°, then the vertex angle is 124°.
Two ray vertex
A solid angle, measured from a vertex, is the ratio between the area subtended by the angle at the vertex and the the square of the distance to the vertex. The unit of measurement is the stradian.
the vertex of the angle
If that '56' has units of 'degrees', then the vertex angle is 68 degrees.
Only if the vertex angle being bisected is between the sides of equal length will the result be two congruent triangles.
Very rarely.
80 degrees
Because the vertex is always in the same spot and its not the length of the line but the distance between the two lines that make the angle measure
No. The interior angle and exterior angle at the same vertex are supplementary. Each of them is (180 degrees minus the other). In rectangles (including squares), the interior and exterior angles at each vertex are both right angles.