Transformations
A type of transformation in which a figure moves or slides up, down, left, right, or diagonally without changing it's appearance.
What is translation?
If a transversal intersects two parallel lines, then corresponding angles are congruent.
What is the corresponding angles theorem?
An angle that is less than 90 degrees.
What is an acute angle?
A triangle with a minimum of two congruent sides.
What is an isosceles triangle?
Two angles that share a side.
What are adjacent angles?
A type of transformation in which a figure is flipped over a line, the line of reflection, without changing its appearance.
What is reflection?
If a transversal intersects two parallel lines, then alternate interior angles are congruent.
What is the alternate interior angles theorem?
An angle that's over 90 degrees.
What is an obtuse angle?
A triangle with three congruent sides and three congruent angles.
What is an equilateral triangle?
Points that lie on the same plane.
What are collinear points?
A type of transformation in which the pre-image is turned around a fixed point, the center of rotation, in order to create the final image.
What is rotation?
If a transversal intersects two parallel lines, then same-side interior angles are supplementary.
What is same-side interior angles theorem?
An angle that's 90 degrees.
What is a right angle?
A triangle with no equal sides.
What is a scalene triangle?
A point that divides a segment into two equal parts and is the halfway point on the given line segment.
What is a midpoint?