Lines
A figure that has one endpoint.
What is a ray?
Two rays that share an endpoint
What is an angle?
Similarity between two halves of an object
What is symmetry?
The outline of a geometric figure.
What is a shape?
A three sided shape.
What is a triangle?
The space between two points that is infinite.
What is a line?
An angle measuring less than 90 degrees
What is an acute angle?
Mirror images that create symmetry
What is reflection?
A shape consisting of four right angles and four lines of symmetry.
What is a square?
A triangle with three equal sides and angles.
What is an equilateral triangle?
A line consisting of two endpoints.
What is a line segment?
An angle measuring more than 90 degrees
What is an obtuse angle?
The divide between two halves of an object or shape that determines whether or not the shape has symmetry
A shape consisting of no vertices, but does have symmetry.
What is a circle?
A shape with two equal sides and angles.
What is an isosceles triangle?
Lines that never interest and are usually indicated by ">" on diagrams.
What are parallel lines?
An angle measuring 90 degrees
What is a right angle?
Rotating a square is an example of this kind of symmetry.
What is rotational symmetry?
A shape consisting of five equal sides and one line of symmetry.
What is a pentagon?
A triangle consisting of one 90 degree angle.
What is a right triangle?
Lines that interest at a 90 degree angle.
What are perpendicular lines?
An angle measuring 180 degrees
What is a straight angle?
The sliding of a shape from one place to another can be an example of this kind of symmetry.
What is translation symmetry?
A shape with no lines of symmetry that has two sets of parallel line
What is a parallelogram?
A triangle with no equal sides or angles.
What is a scalene triangle?