**Q: **Is an angle the figure formed by two rays? ¶

**A: **Yes, and called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

**Q: **Are angles called a linear pair of angles? ¶

**A: **Yes.

**Q: **Is an angle called oblique angles? ¶

**A: **Yes.

**Q: **Is an angle complementary? ¶

**A: **Yes, because the sum of internal angles of a triangle is 180 degrees, and the right angle itself accounts for ninety degrees.

**Q: **Is an angle measured determines its sign? ¶

**A: **Yes, However, in many geometrical situations it is obvious from context that the positive angle less than or equal to 180 degrees is meant, and no ambiguity arises.

**Q: **Is an angle typically defined by its two sides? ¶

**A: **Yes, and with its vertex at the origin.

**Q: **Are angles commonly used in Logo Turtle Geometry when drawing regular polygons? ¶

**A: **Yes.

**Q: **Are angles called the vertical angle theorem? ¶

**A: **Yes.

**Q: **Is an angle "filled up" by its complement to form a right angle? ¶

**A: **Yes.

**Q: **Are angles angle pairs whose measures sum to one right angle? ¶

**A: **Yes, If the two complementary angles are adjacent their non-shared sides form a right angle.

**Q: **Are angles supplementary to both of the adjacent angles? ¶

**A: **Yes, and the vertical angles are equal in measure.

**Q: **Are angles certainly quantitative? ¶

**A: **Yes.

**Q: **Is an angle 1/24 of a turn? ¶

**A: **Yes.

**Q: **Is an angle 100 grads? ¶

**A: **Yes.

**Q: **Are angles listed below in descending magnitude order? ¶

**A: **Yes.

**Q: **Is an angle the acute version of any angle determined by repeatedly subtracting or adding straight angle? ¶

**A: **Yes, and to the results as necessary, until the magnitude of result is an acute angle, a value between 0 and 1/4 turn, 90°, or π/2 radians.

**Q: **Is an angle the same? ¶

**A: **Yes, and any angle of rotation that maps one of the lines into the other leads to the same value for the spread between the lines.

**Q: **Is an angle called an exterior angle? ¶

**A: **Yes, that is, an interior angle and an exterior angle form a linear pair of angles.

**Q: **Are angles equal? ¶

**A: **Yes.

**Q: **Are angles considered as dimensionless? ¶

**A: **Yes.

**Q: **Are angles equal if one accepted some general notions such as: all straight angles are equal? ¶

**A: **Yes, and equals added to equals are equal, and equals subtracted from equals are equal.

**Q: **Are angles vertical angles and hence are equal? ¶

**A: **Yes.

**Q: **Are angles named according to their location relative to each other? ¶

**A: **Yes.

**Q: **Are angles formed? ¶

**A: **Yes.

**Q: **Is a angle also used to designate the measure of an angle or of a rotation? ¶

**A: **Yes.

**Q: **Is an angle positive clockwise? ¶

**A: **Yes, so a bearing of 45° corresponds to a north-east orientation.

**Q: **Is an angle termed the explement of the angle or conjugate of an angle? ¶

**A: **Yes.

**Q: **Is an angle measured as long as each angle is measured in the same unit? ¶

**A: **Yes.

**Q: **Is an angle termed the complement of the angle? ¶

**A: **Yes.

**Q: **Is an angle a reflex angle? ¶

**A: **Yes, and the exterior angle should be considered negative.

**Q: **Are angles also formed by the intersection of two planes in Euclidean and other spaces? ¶

**A: **Yes.

**Q: **Are angles adjacent? ¶

**A: **Yes, and their non-shared sides form a straight line.

**Q: **Is an angle said to be normal? ¶

**A: **Yes, and orthogonal, or perpendicular.

**Q: **Is an angle usually characterized by the magnitude of the smallest rotation that maps one of the rays into the other? ¶

**A: **Yes.

**Q: **Is an angle drawn, e.g? ¶

**A: **Yes, with a pair of compasses.

**Q: **Is an angle supplementary to the third? ¶

**A: **Yes, because the sum of internal angles of a triangle is a straight angle.