Basic Geometry Vocabulary

How many sides are in a hexagon?

• 4

• 5

• 6

• 7

What angle is exactly 90 degrees?

• acute

• right

• obtuse

• straight line

What angle is less than 90 degrees?

• right

• straight line

• obtuse 

• acute

Parallel lines are lines that are side by side and they will never intersect.

• True

• False

For intersecting lines to be considered perpendicular they must intersect each other at 90 degrees.

• True

• False

What kind of intersecting lines are these?

• Parallel Lines

• Perpendicular Lines

• Right Lines

• Scalene Lines

What type of angle is this?

• Acute

• Obtuse

• Right

• Caboose

Part of a line with two end points

• point

• line

• line segment

• ray

What type of angle is this?

• reflex angle

• right angle

• acute angle

• obtuse angle

Angles that have a measure less than 90 degrees are called    _______ ________.

• acute angles

• obtuse angles

• right angles

• straight angles