line
a straight path connected by a set of points that extends endlessly in both directions
line segment
a part of a line that has two definite endpoints
perpendicular
two lines intersecting to make a 90 degree angle
parallel
two lines on the same plane, going in the same direction that will NEVER intersect
obtuse triangle
triangle with one angle greater than 90 degrees
obtuse angle
angle greater than 90 degrees
parallelogram
quadrilateral made up of two pairs of parallel lines
attributes
Traits, characteristics, or properties of a shape (like size, number of sides, angles, surface area). A fancy way of saying what a shape HAS and what it LOOKS LIKE
isosceles triangle
a triangle with at least two sides of equal length
intersect
when two lines cross at a common point
horizontal
a straight line that goes from left to right
equilateral triangle
triangle with all sides of equal length
attributes
A fancy way of saying what a shape has (what kind of angles or sides) and what it looks like
acute triangle
A triangle with all angles less than 90 degrees
shape with height, width and depth
3D
three-dimensional
FLAT shape with height and width, but NO depth
2D
two-dimensional
angle
two rays or lines that share a common endpoint; measured in degrees
What type of angle is this?
acute angle
An angle that is less than 90 degrees
vertical
direction that goes up and down
