A rectangle is a special type of parallelogram whose angles are right. It is an online Geometry tool requires two length sides of a rectangle. The formula involves dividing your rectangle into its two congruent right triangles â with at least one 90-degree angle. Else if this sum is equal to the area of the rectangle (observe that this sum cannot be less than the latter), ... angle, and area. A rhombus has four sides and its two diagonals bisect each other at right angles. If you need to find the area if you only know the area or the length of 1 side and a diagonal, keep reading the article! Example: A rectangle is 6 m wide and 3 m high, what is its Area? The sides and angles of a rectangle: Opposite sides of a rectangle are the same length (congruent). For example, a rectangle with a base of 6 and a height of 9 has an area of 54. It can be stated as: Area of a rectangle = a × b. Rectangle calculator Compute the area and the length of the diagonal of a rectangle Definition of a rectangle: the rectangle is a quadrangle, or a parallelogram, where all four of its angles are right angles, or the diagonals have the same length. This online calculator finds the area of a rectangle from the length of one side and the diagonal. The area of the reactangle is Opposite angles formed at the point where diagonals meet are congruent. The area of the quadrangle is calculated using the formula of the sum of the length of the four sides and the diagonal. Enter the length of four side(a, b, c, and d) and sum of the diagonal(A+B), and click "Calculate area of quadrangle", the area of the quadrangle is calculated from the length of four side and the sum of the diagonal, and it is displayed. So, the area of the rectangle is 48 square ft. Opposite sides are parallel and of equal length (so it is a Parallelogram). Solution : To find the area of a rectangle, we have to know its length and width. Draw a sketch. Area & Perimeter of a Rectangle calculator uses length and width of a rectangle, and calculates the perimeter, area and diagonal length of the rectangle. The diagonals are bisect each other and congruent. Example 4 : If the length of each diagonal of a rectangle is 13 cm and its width is 12 cm, then find the area of the rectangle. Formula for area of a rectangle is much simpler than you think. Using a diagonal of a rectangle calculator makes the entire process effortless as long as you have other measurements, but you can also use the diagonal of a rectangle formula. Then, multiply the base by the height of the rectangle to get the area. Opposite angles of a rectangle â¦ Area = 6 m × 3 m = 18 m 2. Using this calculator, we will understand the algorithm of how to find the perimeter, area and diagonal length of a rectangle. The formula to find the length of the diagonal of a rectangle is: Diagonal of a Rectangle = â[l 2 + b 2] Where âlâ and âbâ are the length and breadth of the rectangle, respectively. person_outline Timur schedule 2019-09-17 09:22:07 Rectangle is a quadrilateral having opposing sides parallel and four right angles. Width is given in the question, that is 12 cm. The area is the amount of two-dimensional space taken up by an object is calculated using Area=((Diagonal)^2*sin(Theta))/2.To calculate Area of rectangle in terms of sine of the acute angle between the diagonals and the diagonal of a rectangle, you need Diagonal (d) and Theta (Ï).With our tool, you need to enter the respective value for Diagonal and Theta and hit the calculate button. A rectangle is a four-sided flat shape where every angle is a right angle (90°). Be sure to include the units of the measurements in your answer. Remember that a 90 degree angle is called a "right angle." Rectangle area formula. 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