Show:
Angles
Area and Perimeter
Polygons
Triangles
Vocabulary
100
Two rays or line segments that share the same endpoint.
What is an angle?
100
The distance around an outside figure or shape. 
What is perimeter?
100
A closed 2-dimensional figure made up of 3 or more sides that do not cross eachother.
What is a polygon?
100
A polygon with three sides.
What is a triangle?
100
A straight line that has two end points.
What is a line segment?
200
An angle that is exactly 90 degrees (shaped like an "L")
What is a right angle?
200
The number of square units needed to cover a figure without overlapping. The formula is l x w.
What is area?
200
A polygon where all side lengths and angle measures are the same.
What is a square?
200
The correct name for a triangle with one right angle. 
What is a right triangle?
200
A straight line that goes in one direction forever starting from an end point.
What is a ray?
300
An angle that is less than 90 degrees (Less than a right angle)
What is an acute angle?
300
A figure that is made up of 2 or more figures. Must be split in order to determine area. 
What is a composite figure?
300
Any polygon with four sides.
What is a quadrilateral/quadangle?
300
A triangle that has two equal sides.
What is an isosceles triangle?
300
A point where two lines meet.
What is a vertex?
400
An angle that is more than 90 degrees (greater than a right angle)
What is an obtuse angle?
400

The area of a rectangle that has a length of 6 inches and a width of 4 inches.

What is 24? 
400
A four-sided figure with opposite sides parallel. Opposite angles are equal, too.
What is a rhombus?
400

The number of right triangles used to make a square.

What is 2?
400
Two lines that cross or meet.
What are intersecting lines?
500
An angle that is exactly 180 degrees so that it forms a straight line.
What is a straight angle?
500
The perimeter of a figure with a length of 8 and width of 4?
What is 24?
500
A polygon with two sets of parallel lines.
What is a parallelogram?
500

A characteristic of a polygon or shape. For example, when I say a triangle has 3 sides and 3 angles, I am describing its....

What is an attribute?
500
Two lines that stay the same distance apart and never meet
What are parallel lines?