Congruent

(1) In geometry, two figures are said to be congruent if one can be transformed into the other via a distance preserving map. (2) In number theory, two integers are said to be congruent if their difference is divisible by a given modulus.

Congruent is a middle school-level concept. It is listed in the California State Standards for Grade 7.

Classroom Articles on Geometry (Up to Middle School Level)

	Acute Angle	Octagon
	Altitude	Octahedron
	Angle	Parallel
	Area	Parallelogram
	Circle	Pentagon
	Circumference	Perimeter
	Complementary Angles	Perpendicular
	Cone	Pi
	Cube	Point
	Cylinder	Polygon
	Decagon	Prism
	Diameter	Pyramid
	Dodecagon	Quadrilateral
	Dodecahedron	Radius
	Equilateral Triangle	Rectangle
	Geometric Construction	Regular Polygon
	Golden Ratio	Right Triangle
	Golden Rectangle	Sphere
	Hendecagon	Square
	Heptagon	Supplementary Angles
	Hexagon	Surface
	Hypotenuse	Surface Area
	Icosahedron	Tetrahedron
	Isosceles Triangle	Trapezoid
	Midpoint	Triangle
	Nonagon	Volume
	Obtuse Angle