Square is called the regular polygon with four equal parties and equal corners between them. The square can be defined as a rhombus at which all corners are equal or as a rectangle at which all parties are equal. One of numerical characteristics which can be calculated for a square is the area. The way of calculation of the area depends on the available basic data.
Instruction
1. In the simplest calculationsareassquareway is calculation for length of the party. Let there is a square and length of its party of an is known, then the area can be found on formules = a?.
2. If square diagonal length is known, then its area can be calculated, using the theorem of PifagoraS = d?/2.
3. If to enter a circle in a square, then the radius of this circle will be equal to a half of the party of a square, then the area can be calculated on formules = 4*r?, where r is the radius of an inscribed circle.
4. If the circle is described about a square, then the radius of this circle will be equal to a half of diagonal of a square, then the area will be ravnas = 2*R?, where R is the radius of a circumscribed circle.