Thus the line stretching from one corner of the square or rectangle to the opposite corner through the center point of the figure is known as the diagonal. We'll solve this geometry problem in today's video math lesson! Diagonal of a square formula: Let PQRS be a square with ‘S ‘units as side. For more formulas, register with us. A diagonal divides a square into two right triangles. A square is a cyclic quadrilateral having all the four sides of equal length. Or, area = 50 cm 2. ããæ±ãã, à¤µà¤°à¥à¤ à¤à¥ à¤µà¤¿à¤à¤°à¥à¤£ à¤à¥ à¤à¤£à¤¨à¤¾ à¤à¤°à¥à¤ (Calculate a Diagonal of a Square), à¸«à¸²à¸à¸§à¸²à¸¡à¸¢à¸²à¸§à¸à¸à¸à¹à¸ªà¹à¸à¸à¹à¸¢à¸à¸¡à¸¸à¸¡à¹à¸à¸£à¸¹à¸à¸ªà¸µà¹à¹à¸«à¸¥à¸µà¹à¸¢à¸¡à¸à¸±à¸à¸¸à¸£à¸±à¸ª, ì ì¬ê°í ëê°ì ì ê¸¸ì´ ê³ì°íë ë°©ë², consider supporting our work with a contribution to wikiHow. The area of a square can be calculated using its diagonals. A square A square with a length of diagonals 12cm give: a) Calculate the area of a square b) rhombus with the same area as the square, has one diagonal with a length of 16 cm. Note: Using the diagonal, the perimeter of the square can also be found as explained below. A diagonal is a straight line joining two opposite corners of a square, rectangle, or another straight-sided shape is calculated using Diagonal=2*sqrt(2)*Radius Of Inscribed Circle.To calculate Diagonal of the square when inradius is given, you need Radius Of Inscribed Circle (r).With our tool, you need to enter the respective value for Radius Of Inscribed Circle and hit the calculate button. In today’s lesson, we will find the length of a diagonal of a square using three simple formulas, derived from the length of the square’s side, or its perimeter, or its area. Diagonal of a Square = √2*x, where x = length of any side of the square The two legs have lengths of 8. 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