Math is cool
True or false: A square has 2 acute angles and 2 obtuse angles
False
What's the word for: A flat shape with straight sides that are closed
A polygon
How many sides does a pentagon have?
5
How many degrees does a right angle measure?
90
What is the end of a ray or line segment called?
An endpoint
What's the word for: a shape that goes in both directions forever
A line
How many degrees does a straight angle measure?
180
True or false: A triangle has one pair of parallel lines
False
What's the word for: A polygon with 4 sides
A quadrilateral
What type of angles does a pentagon have?
⬟
Obtuse angles
What's the word for: straight lines that always stay the same distance apart and never meet?
Parallel Lines
How many sides does a heptagon have?
7
What is the word for a straight line that starts at one point, and goes forever in one direction?
A ray
How many degrees does an acute angle measure?
Less than 90
What's the word for: A piece of a line with 2 end points
Line Segment
How many degrees does an obtuse angle measure?
More than 90
What type of angles does a rectangle have?
Right angles
What's the word for: Two lines that cross forming 90 degree angles
Perpendicular lines
What type of angles does a triangle have?
△
Acute angles
What's the word for: A shape made by 2 rays, lines, or line segments, that meet at a common endpoint
An angle
How many sides does a dodecagon have?
What is a unit of angle measurement called?
A degree
What type of angles does a square have?
Right angles
What's the word for: the point where two lines or line segments meet
A vertex
What are the 3 properties of shapes?
Length of sides, number of sides, and angles