Show:
Angles
Lines
Angle Relationships
Triangles
Grab Bag
100
An angle whose measure is less than 90 degrees.
What is an acute angle?
100
Lines that never touch.
What are parallel lines?
100
Adjacent angles that sum 180 degrees are referred to as these angles.
What are supplementary angles?
100
The sum of the interior angles of a triangle.
What is 180 degrees.
100
A tool used to measure the degree of an angle.
What is a protractor?
200
An angle whose measure is greater than 90 degrees.
What is an obtuse angle?
200
A straight line which links 2 points without extending beyond them.
What is a line segment?
200
This angle pair is on opposite sides of the transversal and outside the parallel lines.
What are alternate exterior angles?
200
This triangle has a 90 degree angle.
What is a right triangle?
200
Adjacent angles that sum 90 degrees are referred to as these angles.
What are complimentary angles?
300
An angle whose measure is equal to 90 degrees.
What is a right angle?
300
Lines that intersect to form right angles.
What are perpendicular lines?
300
Pair of non-adjacent angles on the same side on the transversal that are congruent.
What are corresponding angles?
300
If a triangle's base angles are congruent, the triangle can be categorized as ________________.
What is isosceles.
300
Transformations that preserve shape and size are called this.
What are rigid motions?
400
An angle whose measure is equal to 180 degrees.
What is a straight angle?
400
A line that intersects parallel lines at two distinct points.
What is a transversal?
400
Angles within the parallel lines and are supplements of one another.
What are same-side interior angles?
400
A triangle with three unequal sides.
What is a scalene triangle?
400
An isosceles triangle has two ____ angles and a ____ angle.
What are base and vertex?
500
An angle whose measure is between 180 degrees and 360 degrees.
What is a reflex angle?
500
A line, segment, or ray that divides an angle into two congruent angles.
What is an angle bisector?
500
Pair of opposite angles made by two intersecting lines.
What are vertical angles?
500
A triangle with three sides that are the same length.
What is an equilateral triangle?
500
A transformation in which a geometric figure is "shifted".
What is a translation?