The point at which the three medians intersect. The center of mass of a figure of uniform.
The study of geometric figures in two dimensions (plane geometry) and three dimensions (solid geometry). It includes the study of points, lines, triangles, quadrilaterals, other polygons, circles, spheres, prisms, pyramids, cones, cylinders, and polyhedra.
A solid with parallel congruent bases which are both polygons. The bases must be oriented identically. The lateral faces of a prism are all parallelograms or rectangles.
A closed plane figure for which all sides are line segments. The name of a polygon describes the number of sides. A polygon which has all sides mutually congruent and all angles mutually congruent is called a regular polygon.
A quadrilateral which has a pair of opposite sides which are parallel. The parallel sides are called the bases, and the other two sides are called the legs.
The circumcenter of a triangle is the point where the three perpendicular bisectors meet. This point is the same distance from each of the three vertices of the triangles.
The concluding statement. Statement made using inductive reasoning.
Opposite of the truth value. Shown by symbol ~, "not p".
Written as p ^ q. Statements joined by "and".
Statements joined by "or". Written as p v q.
negating the hypothesis/ conclusion. Written as ~p->~p
Switching the hypothesis/ conclusion. Written as q->p.
Negating and switching the hypothesis. Written as ~q->~p.
Created by three special points and lines. Named after Swiss mathematician Leonard Euler.
A concave polygon is any polygon with an angle measuring more than 180°. Look like they are collapsed or have one or more angles dented in.
A combination of two transformations. A reflection over a line followed by a translation in the same direction as the line.
Has only one dimension. It continues forever in two directions.
The portion of a line lying strictly between two points. It has a finite length and no width.
Everywhere equidistant. Two lines in the same plane that never intersect.
A closed three-dimensional figure. All of the faces are made up of polygons.
If you have a right triangle, then the square built on the hypotenuse is equal to the sum of the squares built on the other two sides. a2 + b2 = c2.