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terms
angels
triangles
polygons
lines
100
A straight path that extends forever in opposite directions. Named by two points
What is a line
100
two rays joined at a common endpoint called the vertex.
What is an angle
100
A triangle that has 3 equal sides
What is equallateral
100
A 2 dimensional closed figure formed from 3 or more line segments that intersect at their endponts.
What is a polygon
100
lines or segments that meet or cross at one point
What is intersecting
200
A part of a line with two end points
What is a line segment
200
the point on an angle or polygon where two lines or rays meet.
What is a vertex
200
A triangle that has 2 sides the same length
What is isosceles
200
A polygon with congruent sides and angles
What is a regular polygon
200
lines or segments that meeet or intersect to form right angles.
What is perpendicular
300
A part of a line with one end pont that extends forever in one direction.
What is a ray
300
An angle that measures 90 degrees
What is a right angle
300
A triangle that has NO equal sides
What is scalene
300
A polygon with sides and angles that are not congruent
What is an irregular polygon
300
lines or segments in a plane that stay the same distance apart and never meet or cross
What is parallel
400
An exact location in space, named by a capital letter
What is a point
400
An angle < 90 degrees
What is acute
400
A triangle that has 3 angles that are less than 90 degrees
What is an acute triangle
400
A polygon with 5 sides
What is a Pentagon
400
slanted line (neither horizontal or vertical)
What is diagonal
500
a flat surface that extends without end in all directions
What is a plane
500
An angle > 90 degrees
What is obtuse
500
A triangle that has one obtuse angle and two equal sides
What is an obtuse isosceles triangle
500
A quadrilateral with only one set of parallel lines
What is a trapezoid
500
parallel to the horizon of the earth
What is horizontal