rays,lines,angles
What is it called when 2 lines come together and create a point.
Vertex
What makes a shape a polygon?
angle that is less than 90 degree
acute
What we we call lines that cross, but do not make a right angle?
intersect
What is a location on a line called?
point
What do we call a shape that has 4 sides?
quadrilateral
angle that is exactly 90 degrees
right
Lines that will never cross or touch are called?
parallel lines
What do we call a line with 2 end points?
line segment
A shape that ONLY has one set of parallel lines
trapezoid
angle that is more than 90
obtuse
what is it called when angles add up to 180 degrees.
supplementary
What is a line with an end point on one side and an arrow on the other?
ray
What shape is like a square but doesn't have right angles.
rhombus
angle that is 180 degree
straight angle
What is symmetry?
A mirror image.
What are lines that cross and make a right angle?
perpendicular lines
What is it called when a shape has 2 SETS of parallel lines?
parallelogram
What do we call it when angles add up to 90 degrees?
complementary
How many lines of symmetry does a circle?
infinite