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315
A quadrilateral with only one pair of sides
What is a trapezoid
315
Lines that never intersect
What parallel lines
315
This has no sides equal in length
What is a scalene triangle
315
Polygon with 5 sides
What is a pentagon
315

A shape with 14 sides and vertices.

tetradecagon or a tetrakaidecagon.

415
A quadrilateral with 2 pairs of parallel sides
What is a parallelogram
415
Lines that pass through the same point
What are intersecting lines
415

A shape that has one angle that is equal to 90 degrees

What is an right angle 

415
Polygon with 4 sides
What is a quadrilateral
415

Shape with 15 sides and vertices

 pentadecagon or pentakaidecagon

515
A quadrilateral that has opposite sides that are parallel and all of its sides are the same length
What is a rhombus
515
Lines that form square corners
What are perpendicular lines
515
A triangle that has angles that are all less than 90 degrees
What is an acute triangle
515
Polygon with 6 sides
What is a hexagon
515

a shape with 16 sides

a hexadecagon

615
4 right angles and the sides are all the same length
What is a square
615
This connects two points
What is a segment
615
This has 3 equal sides
What is an equalateral triangle
615
Polygon with 3 sides
What is a triangle
615

A 17 sided shape

 heptadecagon, or sometimes the heptakaidecagon.

715
It has 4 right angles and is also a parallelogram
What is a rectangle
715
This starts at a point and continues through a point into a direction
What is ray?
715
This has 2 equal sides
What is an isosceles triangle
715
polygon with 8 sides
What is an octogon
715

A 18 sided shape

 Octadecagon.