Vocab
Angles
Polygons
4th Grade Geometry 4
100
What is this called?
A ray
100
An angle that is less than 90 degrees
acute angle
100
What is a polygon that has 6 sides?
Hexago
100
What type of angle is this angle?
Obtuse
200
Two lines that never cross each other are called?
Parallel
200
An angle that is EXACTLY 90 degrees
right angle
200
What polygon is a with 5 sides?
Pentago
200
True or False: Parallel lines cross each other
False
300
Define Perpendicular
Two lines that intersect and form a 90 degree angle/right angle
300
An angle that is greater than 90 degrees
obtuse angle
300
I am a shape that has 4 right angles and all my sides are equal.
Square
300
I am two lines that cross in each other but not necessarily at a 90 degree angle. we just cross each other
Intersecting lines
400
What is the difference between a line and line segment?
A line continues forever, a line segment has endpoints
400
An angle that is EXACTLY 180 degrees
Straight angle
400
How are a square and rectangle different?
A square ALL the sides are the same, a rectangle has OPPOSITE sides that are the same.
400
What are line segments that intersect at an angle of 90 degrees?
Perpendicular lines
600
How are vertical and horizntal lines different?
Vertical lines go up-and-down, Horizontal lines go side-to-side
600
Two angles that share a common vertex and a common side but do not overlap
adjacent angles
600
Can a square be called a rectangle? Why?
YES! Because the definition of a rectangle is to have 4 sides with opposite sides being the same and a square has that! A square is a special rectanlge
600
The end point of a shape is called what?
Vertex