Line and Angle

Which statement about parallel lines is correct?

1. They always intersect.
2. They meet at one point.
3. They remain the same distance apart and never meet.
4. They always form right angles.

The common endpoint of two rays forming an angle is called:

1. Arm
2. Vertex
3. Side
4. Edge

If one angle is 110°, its supplementary angle is:

1. 60°
2. 70°
3. 80°
4. 90°

If one angle is 50°, its complementary angle is:

1. 30°
2. 40°
3. 50°
4. 130°

Which instrument is used to measure angles?

1. Compass
2. Divider
3. Protractor
4. Scale

An angle measuring 135° is:

1. Acute
2. Right
3. Obtuse
4. Straight

How many degrees are there in a complete angle?

1. 90°
2. 180°
3. 270°
4. 360°

A ray has:

1. No endpoint
2. One endpoint
3. Two endpoints
4. Three endpoints

Two lines intersecting at 90° are called:

1. Parallel lines
2. Perpendicular lines
3. Curved lines
4. Horizontal lines

Which pair of lines never meet even when extended?

1. Intersecting lines
2. Parallel lines
3. Perpendicular lines
4. Slanting lines

What is the measure of a straight angle?

1. 90°
2. 120°
3. 180°
4. 360°

An angle measuring less than 90° is called:

1. Acute angle
2. Right angle
3. Obtuse angle
4. Reflex angle

An angle measuring exactly 90° is called:

1. Acute angle
2. Right angle
3. Obtuse angle
4. Straight angle

Which geometric figure extends endlessly in both directions?

1. Line segment
2. Ray
3. Line
4. Point