What goes through two points and goes on forever in both directions?
Line
100
What do you call a 90 degree angle that forms a square corner?
Right angle
100
What do you call any closed, 2D plane figure made of line segments called sides?
Polygon
100
What do you call a quadrilateral with two pairs of parallel sides, four sides equal in length, that forms four right angles?
Square
100
What do you call a triangle that has three angles that are less than 90 degrees?
Acute triangle
200
What do you call part of a line that has two endpoints?
Line segment
200
What do you call an angle that is smaller than a right angle?
Acute angle
200
What do you call a polygon with 8 sides?
Octagon
200
What do you call a quadrilateral with two pairs of parallel sides that forms four right angles but does not need to have sides that are equal in length?
Rectangle
200
What do you call a triangle that has one 90 degree angle?
Right triangle
300
What do you call a specific location in space?
Point
300
What do you call an angle that is bigger than a right angle?
Obtuse angle
300
What do you call a polygon with 5 sides?
Pentagon
300
What do you call a quadrilateral with two pairs of parallel sides, that does not have to have right angles but can, and does not need to have sides that are equal in length but can?
Parallelogram
300
What do you call a triangle that has three sides that are equal in length?
Equilateral triangle
400
What do you call lines that always stay the same distance apart and never cross?
Parallel
400
What do you call the common endpoint formed in the corner of an angle?
Vertex
400
What do you call a polygon with six sides?
Hexagon
400
What do you call a quadrilateral that has four equal sides and two pairs of parallel sides, and does not need to have right angles but can?
Rhombus
400
What do you call a triangle with no sides that are equal in length?
Scalene triangle
500
What do you call two lines that cross and form a right angle?
Perpendicular (I will also accept intersecting)
500
What do you call part of a line that has one endpoint and goes on forever in the other direction?
Ray
500
What do you call a polygon with 7 sides?
Heptagon
500
What do you call a quadrilateral that has one pair of parallel sides and no sides that are equal in length?
Trapezoid
500
What do you call a triangle that has two sides that are equal in length?