geo 1 practice

If two lines intersect and form a right angle, what else is true about them?

• They are parallel.

• They are perpendicular.

• They are both rays.

• They are both line segments.

Which of these does NOT describe a line?

• It extends in both directions without end.

• It has one endpoint.

What is the measure of an angle that is half of a right angle?

• 45 degrees

• 90 degrees

• 135 degrees

• 180 degrees

Which of the following angles is an obtuse angle?

• 45 degrees

• 90 degrees

• 135 degrees

• 180 degrees

Which of these is NOT a characteristic of parallel lines?

• They are always the same distance apart.

• They never intersect.

• They meet at a right angle.

• They can be found on a grid.

Two lines that meet at a 90-degree angle are called what?

• Intersecting lines

• Perpendicular lines

• Parallel lines

• Ray lines

Which of the following is a ray?

• A line with no endpoints

• A line with two endpoints

• A part of a line that starts at a point and goes on forever in one direction

• The edge of a square

What type of angle is more than 90 degrees but less than 180 degrees?

• Acute angle

• Obtuse angle

• Right angle

• Straight angle

What type of angle is exactly 90 degrees?

• Acute angle

• Obtuse angle

• Right angle

• Straight angle

Two lines that never meet are called what?

• Intersecting lines

• Perpendicular lines

• Parallel lines

• Ray lines