Lines
A straight path of points that goes on forever in two directions.
Line
What is line?
Two rays that have the same endpoint.
Angle
What is angle?
A triangle whose sides all have the same length.
Equilateral Triangle
What is equilateral Triangle?
A polygon with 3 sides.
triangle
What is triangle?
An instrument used to measure and draw angles.
Protractor
What is protractor?
A part of a line with 2 endpoints
line segment
What is line segment?
An angle whose measure is 90 degrees.
Right angle
What is right angle?
A triangle with two sides of the same length.
Isosceles Triangle
What is Isosceles Triangle?
A polygon with 6 sides.
Hexagon
What is hexagon?
The common endpoint of two rays in an angle.
Vertex
What is vertex?
Part of a line that has one endpoint and extends forever in one direction
ray
What is ray?
An angles whose measure is between 0 and 90 degrees.
Acute angle
What is acute angle?
A triangle in which one angle is a right angle.
Right triangle
What is Right Triangle?
A polygon with 8 sides.
Octagon
What is octagon?
A quadrilateral with both pairs of opposite sides parallel.
Parallelogram
What is parallelogram?
In a plane, lines that never cross and stay the same distance apart.
parallel lines
What is parallel lines?
An angle measuring 180 degrees.
Straight angle
What is straight angle?
A triangle in which no sides have the same length.
Scalene Triangle
What is scalene triangle?
A polygon with 5 sides
Pentagon
What is pentagon?
A polygon that has sides of equal length and angles of equal measure.
Regular polygon
What is regular polygon?
Intersecting lines that intersect to form square corner or right angles.
Perpendicular lines
What is perpendicular lines?
An angle whose measure is between 90 and 180 degrees.
Obtuse angle
What is obtuse angle?
A triangle in which one angle is an obtuse angle.
Obtuse Triangle
What is Obtuse Triangle?
A polygon with 4 sides.
Quadrilateral
What is quadrilateral?
A parallelogram with all sides the same length
rhombus
What is rhombus?