Geometry Vocab

Perpendicular Bisector

Circumcenter

Angle Bisector

Incenter

Altitude

Orthocenter

Median

Centroid

The point of concurrency of the angle bisector is called the…

incenter

A segment connecting a vertex to the midpoint of the opposite side is a

median(s)

The slope of an altitude is… to the side it intersects.

perpendicular

The centroid is the point of concurrency of the…

median(s)

The…  is equidistant form the vertices.

circumcenter

A line intersecting a side's midpoint at a rigth angle is a…

perpendicular bisector

The point of concurrency of the altitudes is the…

orthocenter

A segment connecting two midpoints is a…

midsegment

The incenter is equidistant from the triangle's…

sides

The point of concurrency of the perpendicular bisectors is the…

circumcenter

Quadrilaterals

sum of angles = 360

Trapezoids

At least 1 pair of parallel sides

Kites

2 pairs consecutive congruent sides, at least 1 pair opposite angles congruent, diagonal perpendicular, 1 diag bisect opposite angles and other diag

Isosceles Trapezoid

legs congruent, diag congruent

Parallelograms

2 pairs sides parallel, 2 pairs opposite sides congruent, 2 pairs opposite angles congruent, consec angles supp, diags bis each other

Rectangles

4 right angles equiangular, diags congruent

Square

regular quadrilateral

Regular

all sides and angles congruent

Midsegment of a Trapezoid

average of the 2 bases, b=(a+c)/2

Parallelogram def

a quadrilateral with both pairs of opposite sides parallel

Parallelogram shorthand

defn of (parallelogram)

Slope formula

Distance Formula

Midpoint Formula

Point-Slope Formula

Slope Intercept formula

Standard Form