"Congruent" refers to figures or objects that are identical in shape and size. In geometry, two shapes are congruent if they can be transformed into one another through rotations, translations, or reflections without resizing. For example, two triangles are congruent if their corresponding sides and angles are equal. This concept is often used in mathematics to establish relationships and properties of geometric figures.
A cylinder.
A four faced figure is a tetrahedron. If they are all congruent triangles, they are all equilateral triangles and it is a regular tetrahedron - one of the 5 Platonic Solids.
In gemortry, CPCTC is the abbreviation of a therom involving congrugent triangles. CPCTC stands for Corresponding Parts of Congruent Triangles are Congruent. CPCTC states that if two or more triangles are proven congruent by: ASA, AAS, SSS, HL, or SAS, then all of their corresponding parts are congruent as well.Ifthen the following conditions are true:A related theorem is CPCFC, in which triangles is replaced with figures so that the theorem applies to any polygon or polyhedrogen.