Triangle segments and centers
A segment that divides an angle into two congruent angles.
What is angle bisector?
This transformation is NOT a rigid motion.
What is dilation?
The sum of all 4 angle measures of a quadrilateral.
What is 360 degrees?
A segment with one endpoint at the center and one endpoint on the circumference.
What is radius?
This formula is used to show that two segments are parallel.
What is slope?
The intersection point of all three medians of a triangle.
What is centroid?
This transformation shifts a figure vertically and horizontally.
What is translation?
This definition of this quadrilateral is that both pairs of opposite sides are parallel.
What is parallelogram?
A line or segment that intersects a circle exactly once.
What is tangent?
The relationship between the slopes of two segments that are perpendicular.
What are negative reciprocals?
A segment drawn from a vertex of a triangle that is perpendicular to the opposite side.
What is altitude?
Under a dilation, this scale factor transforms the point (-2,3) into the point (-10,15).
What is a scale factor of 5?
This quadrilateral has four congruent sides and four right angles.
What is square?
A segment with both endpoints on the circumference of a circle and does NOT pass through the center of the circle.
What is chord?
This formula is used to prove that both pairs of opposite sides of a parallelogram are congruent.
What is distance?
The intersection point of all three perpendicular bisectors of a triangle.
What is circumcenter?
Under a reflection of 180 degrees, the coordinate points (1,2) is transformed into this coordinate point.
What is (-1,-2)?
In this quadrilateral, the diagonals are congruent.
What is rectangle or square?
This formula is used to prove that the diagonals of a parallelogram bisect each other.
What is midpoint?
The intersection point of all three altitudes of a triangle.
What is orthocenter?
The rule for this reflection is (x,y) --> (-x,y).
What is reflection in the y-axis.
In this quadrilateral, the diagonals bisect both pairs of opposite angles.
What is rhombus or square?
This can be found by multiplying 2*pi*r.
What is circumference?
This formula is used to prove that a quadrilateral contains right angles.
What is slope?