Lines
Lines or segments that do not cross.
What are parallel lines?
An angle that measures greater than 90 degrees, but less than 180 degrees.
What is an obtuse angle?
A three sided shape with a sum of 180 degrees.
What is a triangle?
An exact position or location.
What is a point?
The shared point of an angle's rays; a corner
What is a vertex?
A series of points that ends infinitely in one direction.
What is a ray?
An angle that measures exactly 90 degrees
What is a right angle?
A triangle with a 90 degree angle.
What is a right triangle?
Of equal measure.
A flat 2D surface that extends infinitely.
What is a plane?
A portion of a line with two endpoints.
What is a line segment?
An angle that is less than 90 degrees.
What is an acute angle?
A triangle with two equal sides and angles.
What is an isosceles triangle?
The point on a line segment that splits it into two congruent parts.
What is a midpoint?
The line or segment that splits an angle into two congruent parts.
What is an angle bisector?
Lines or segments that form right angles at their intersection.
What are perpendicular lines?
An angle that measures exactly 180 degrees.
What is a straight angle?
A triangle with no equal sides.
What is a scalene triangle?
The sides of a right triangle adjacent to the right angle; the congruent sides of an isosceles triangle.
What is a leg?
A line or segment that splits another segment into two congruent parts.
Segment Bisector
A series of points extending infinitely in both directions.
What is a line?
Two rays that share a common point.
What is an angle?
A triangle with all equal sides and angles.
What is an equilateral triangle?
Two angles that share the same vertex.
What is adjacent angles?
The side of a right triangle opposite the right angle.
What is a hypotenuse?