Points, Lines, Rays, Angles, Planes, and Segments

Consists of 2 endpoints and all the points in between.

• Ray

• Line

• Line Segment

• Angle

To lines that intersect to form right angle.

• Parallel Lines

• Perpendicular Lines

• Congruent Segments

• Parallel Planes

Which Symbol represents this picture?

• ≌

• ∥

• ⊥

• ↔

What angle is exactly 90 degrees?

• acute

• right

• obtuse

• straight line

What angle is less than 90 degrees?

• right

• straight line

• obtuse 

• acute

Which angle is greater than 90 but less than 180 degrees?

• acute

• right

• obtuse

• straight line

An angle with a measure between 0 and 90 degrees is called an _____________________.

• acute angle

• right angle

• obtuse angle

• straight angle

An angle with a measure equal to 90 degrees is called a __________________________.

• right angle

• obtuse angle

• acute angle

• congruent angle

Points that are at the ends of a line segment are called _____________________________.

• endpoints

• arrows

• rays

• midpoints

A _______________ is a flat, 2-dimensional surface usually represented by a shape that looks like a floor or a wall.

• plane

• segment bisector

• line

• ray