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EQUATION AREA OF A RECTANGLE HOW TO
EQUATION AREA OF A RECTANGLE FULL

We often memorize the formulas for calculating the area of shapes.

ShapeĪrea of a triangle =$\dfrac\times (d1) \times (d2)$square unitsĬheck out the following topics related to areas of different shapes and learn more about area formulas. The following table shows the list of formulas for the area of various shapes. The area of a circle is calculated with the help of the formula: π r 2, where π is a mathematical constant whose value is approximated to 3.14 or 22/7 and r is the radius of the circle.Įach shape has different dimensions and formulas. Learn more about π and radius before we go to the formula for the area of a circle. The area of a circle is the amount of space enclosed within the boundary of a circle. Area of a CircleĪ circle is a curved shape. So, the area of this square = 5 × 5 = 25 square units. Therefore, the area of the square is the product of its sides which can be represented by the formula: Area of a square = side × side. It occupies 25 squares.įrom the figure, we can observe that the length of each side of the colored square is 5 units. Look at the colored square shown in the grid below. The area of a square is the space occupied it.

$equation area of a rectangle$

In this case, it will be 2 × 3 = 6 square units. Thus, the formula for the area of a rectangle is : Area of the rectangle = length × width. The area of a rectangle is obtained by multiplying its length and width which is the same as counting the unit squares. In the above example, the length of the rectangle is 3 units and the width is 2 units. Consider the yellow rectangle in the grid. The area of a rectangle is the space occupied by it. Note that this is only an approximate value. For regular shapes, we have certain formulas to calculate their area. If the shaded region is less than 1/2, we can omit those parts. Together this forms an area of 8 square units.

EQUATION AREA OF A RECTANGLE FULL

Here, the area occupied by the shape = 4 full squares and 8 half squares. If it occupies about 1/2 of the unit square, we can combine two such halves to form an area of 1 square unit. When the shape does not occupy a complete unit square, we can approximate and find its value. Thus, the area of the shape = 9 square units. The area of this shape is the number of shaded unit squares. Let us find the area of the shape drawn in the grid. Hence, each square is known as a unit square. The area of each of these squares is 1 square unit. The grid is made up of many squares of sides 1 unit by 1 unit.

The area of any shape is the number of unit squares that can fit into it.

EQUATION AREA OF A RECTANGLE HOW TO

Let us see how to calculate the area of a shape with the help of a grid.