What is the dimension of a square?
The formula for calculating the area of a square is c × c, “side times side”. E.g.: a square with a side of 5 cm has an area of 5 × 5 = 25 cm2. The formula for calculating the area of a rectangle is L × W, “length times width”.
Consider the square ABCD, so each side c measures 5 cm: Perimeter P = 5 x 4 = 20 cm Definition of a square: A square is a quadrilateral with four right angles and whose four sides have the same length.
The sides constitute the edge of a surface of the plane called a full square and which is the convex hull of the vertices. The solid square without its edge is the interior of the square. . The two segments connecting the opposite vertices are the diagonals of the square, which are perpendicular and of the same length.
Measures [modifier | modifier le code] The area of a square is c×c = c2. Its perimeter measures 4 c and each diagonal measures c√2 . The square is, among the quadrilaterals of the same perimeter, the one which has the greatest surface. This figure is the answer to the question of isoperimetry in quadrilaterals.
Composition [ modifier | modifier le code] A square is a plane figure composed of four points called vertices and four segments of the same length, called sides, connecting the vertices in a cyclic order and successively forming right angles oriented in the same direction.