PLANE GEO Flashcards
Deals with the properties of plane figures or geometrical shapes of two dimensions
Plane Geometry
A plane figure with three or more angles in which its sides are straight lines
Polygon
A polygon all of whose angles are equal and all of whose sides are equal
Regular Polygon
Two polygons’ corresponding angles are equal and their corresponding sides are proportional
Similar Polygon
Polygons having each interior angles less than 180 degrees
Convex Polygon
Polygons having at least one interior angle greater than 180 degrees
Concave Polygon
A polygon with three sides that are contained in a plane
Triangle
A portion of a plane bounded by four straight lines
Quadrilaterals / Quadrangle / Tetragon
A parallelogram whose angles are right angles
Rectangle
A rectangle with equal sides
Square
A quadrilateral whose opposite sides are parallel
Parallelogram / Rhomboid
A parallelogram with four equal sides
Rhombus
A quadrilateral with two and only two whose sides are parallel
Trapezoid
A quadrilateral whose vertices lie on the circumference of a circle
Cyclic Quadrilateral
A plane curve that is the locus of all points in the plane equidistance from a given point called center
Circle
