![]() As mentioned in the calculator above, please use the Triangle Calculator for further details and equations for calculating the area of a triangle, as well as determining the sides of a triangle using whatever information is available. There are many equations for calculating the area of a triangle based on what information is available. Unfortunately for the farmer, he lives in an area predominated by foreign investors with smaller feet, who felt that they should be getting more square feet for their money, and his land remains unsold today. The farmer's plot of land, which has an area of 21,780 square feet, equates to half an acre, where an acre is defined as the area of 1 chain by 1 furlong, which is defined by something else, and so on, and is why SI now exists. Tangent aside, the farmer's plot of land has a length of 220 feet, and a width of 99 feet. The foot was defined to be exactly 0.3048 meters in 1959 after having changed over an extensive period of time, as historically, the human body was often used to provide a basis for units of length, and unsurprisingly, was inconsistent based on time and location. The farmer also lives in the United States, and being unfamiliar with the use of SI units, still measures his plot of land in terms of feet. Because he owns some cows that he did not want frolicking freely, he fenced the piece of land and knew the exact length and width of each edge. Imagine a farmer trying to sell a piece of land that happens to be perfectly rectangular. The Farmer and his Daughter – Unsold Land The equation for calculating the area of a rectangle is as follows: When the length and width of a rectangle are equal, the shape is a special case of a rectangle, called a square. In the case of a rectangle, the length typically refers to the longer two edges of the quadrilateral, while the width refers to the shorter of the two edges. A quadrilateral by definition is a polygon that has four edges and vertices. It is one of the simplest shapes, and calculating its area only requires that its length and width are known (or can be measured). RectangleĪ rectangle is a quadrilateral with four right angles. Provided below are equations for some of the most common simple shapes, and examples of how the area of each is calculated. The standard unit of area in the International System of Units (SI) is the square meter, or m 2. It can be visualized as the amount of paint that would be necessary to cover a surface, and is the two-dimensional counterpart of the one-dimensional length of a curve, and three-dimensional volume of a solid. If 25 cm is the length of the sheet, find its width.Related Surface Area Calculator | Volume CalculatorĪrea is a quantity that describes the size or extent of a two-dimensional figure or shape in a plane. Q: The area of a rectangular sheet is 500 cm². So, cost of painting the total area of the rectangular land = 0.50 x 150000 = Rs 75000. Now, let us calculate the cost of painting the land.Ĭost of painting of an area of 1 square meter = Re 0.50 Thus, Area of the rectangle A = 500 m x 300 m = 1, 50,000 square meters. Also, find the cost of painting the sheet, if a painting of an area of one square meter costs 50 paise.Īns: The Area of a rectangle (A) = l x b, where l is the length and b are the breadths of the rectangle. Q: The length and the breadth of a rectangular piece of land are 500 m and 300 m respectively find its area. ![]() Now that we have some clarity about the concept and meaning of area of rectangle, let us try some examples to deepen our understanding of the subject. Let us now take a deep look into the formula. The unit of area of the rectangle is square units. The area of a rectangle is the product of its two sides, multiplying the length and its breadth. Here, in the case of a rectangle, its length and breadth are not equal. Because of this property, we say that the two diagonals of a rectangle are congruent.Īn object in two-dimensional geometry must have measured for length and breadth. ![]() Diagonal is a line that is drawn inside the rectangle connecting the opposite corners or vertices. Another property of a rectangle is that has two diagonals of equal length. It is an equiangular rectangle with four right angles which is 90 degrees. Since a rectangle has four sides, it has four angles. The opposite sides of a rectangle are parallel and of equal length. A rectangle is a quadrilateral with four sides. Let us first understand the shape and structure of a rectangle. 2 Solved Examples Area of Rectangle Formula
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