Lines
Shapes
Angles
Triangles
Quadrilaterals
100
A set of points that is endless in both directions.
What is a line
100
A shape with 3 sides and 3 angles
What is a triangle
100
Part of a line with one endpoint
What is a ray?
100
A triangle with all sides the same length
What is an equilateral triangle?
100
A quadrilateral with all sides the same length and 4 right angles
What is a square?
200
A part of a line with two endpoints
What is a line segment
200
A closed, flat (2D) shape made up of 3 or more line segments.
What is a polygon?
200
An angle that forms a square angle
What is a right angle?
200
A triangle with one right angle
What is a right triangle?
200
A quadrilateral with two long sides and two short sides and all right angles
What is a rectangle?
300
two lines that will never cross or intersect
What are parallel lines
300
All four sided shapes are called _______ .
What is quadrilaterals?
300
An angle that is open less than a right angle
What is an acute angle?
300
an Isosceles triangle
What is a triangle with two sides the same length called?
300
Has two pairs of parallel sides but no right angles
What is a parallelogram?
400
Two lines that cross at one point
What is intersecting lines
400
A shape that has a dented side is called ______.
What is concave?
400
An angle that is open wider than a right angle
What is an obtuse angle?
400
All angles of this triangle are smaller than a right angle
What is an acute triangle?
400
A shape with four sides but only one pair are parallel
What is a trapezoid?
500
Two lines that cross and form a right angle
What is perpendicular lines
500
A shape with ten sides and ten angles
What is a decagon?
500
The corner or point where the two rays of an angle meet
What is a vertex?
500
A triangle with one wide angle and two small angles
What is an obtuse triangle?
500
All sides the same length but no right angles
What is a rhombus?
M
e
n
u