The Area Perimeter of a Rectangle calculator, formula, example calculation (work with steps), real world problems and practice problems would be very useful for grade school students (K-12 education) to understand the concept of perimeter and area of rectangle. If the diagonal, d, and one side, s, of the rectangle are known, the following area formula can be used: Find the area of the rectangle below that has a diagonal of 26 and length of 24. Area = Width * Height. Area of a rectangle. Using the Pythagorean theorem: w2 + 242 = 262 Formula: Width × Height. To find the area of a rectangle, multiply the length times the width! The formula for the area of a rectangle is width x height, as seen in the figure below: All you need are two measurements and you can calculate its perimeter by hand, or by using our perimeter of a rectangle calculator above. To derive the area of a rectangle, we use the unit squares. From the coordinates of the corner points, calculate the width, height, then area and perimeter of the rectangle. Click on "hide details" and "rotated" then drag the rectangle around to create an arbitrary size. Using the diagonal and side length formula: Another way to find the area of a rectangle is to determine how many unit squares it takes to cover its surface. The area, A, of a rectangle is the product of its length, l, and width, w. Note: Sometimes, base and height are used instead of length and width. A rectangle with four sides of equal length is a square. The rectangle on the left contains 8-unit squares, so it has an area of 8 cm2. Python Area of a Rectangle. A rectangle comprises of four sides, where the longer lines parallel to each other is equal in length. The rectangle to the right contains 20-unit squares, so it has an area of 20 cm2. The formula is: The formula is: A = L * W where A is the area, L is the length, W is the width, and * means multiply. The diagonal of a rectangle divides it into two congruent right triangles. How Do You Find the Area of a Rectangle? Using the diagonal and side length formula: Since the area of a rectangle is a product of its length and width, we need to find the width. Formula of rectangle area in terms of diameter of the escribed circle (excircle) and rectangle side: A = a √ D c 2 - a 2 = b √ D c 2 - b 2 The circumscribed circle of a rectangle (circumcircle) The formula for rectangle of area is mentioned below: Your Mobile number and Email id will not be published. Where, l = Length. Identify length, width, area, and perimeter on rectangles. inch. The formula for rectangle of area is mentioned below: The Area of a Rectangle Formula is, A = l \times b. Using Perimeter and Length Set up the formula for perimeter of a rectangle. using System; namespace TechStudyCSharp { class Program { static void Main(string [] args) { double length, breadth, area; Console.WriteLine("Enter length of rectangle : "); length = Convert.ToDouble( Console.ReadLine()); Console.WriteLine("Enter breadth of rectangle : "); breadth = Convert.ToDouble(Console.ReadLine()); area = length * breadth; Console.WriteLine("\nArea of rectangle: "+ area… Some important Rectangle Formula: The perimeter of the rectangle… Learn how to Calculate Area of Rectangle FAST and EASY with Mr. J! Area = ½ × b × h b = base h = vertical height : Square Area = a 2 a = length of side: Rectangle Area = w × h w = width h = height : Parallelogram Area = b × h b = base h = vertical height: Trapezoid (US) Trapezium (UK) Area = ½(a+b) × h h = vertical height : Circle Area = π × r 2 Circumference = 2 × π × r r = radius: Ellipse Area = π ab : Sector Area = ½ × r 2 × θ