Calculating Area | Formulas for Squares, Rectangles, Triangles, and Circles

Area

The term “area” refers to the measure of the two-dimensional space enclosed within a shape or region

The term “area” refers to the measure of the two-dimensional space enclosed within a shape or region. It is a fundamental concept in mathematics and is used to quantify the size or extent of a flat figure or surface.

The calculation of the area depends on the shape or region being considered. For common shapes such as squares, rectangles, triangles, and circles, there are specific formulas to calculate their areas.

– Square: The area of a square is determined by multiplying its side length by itself. Therefore, the formula for the area of a square is A = side length × side length, or more commonly, A = s².

– Rectangle: To find the area of a rectangle, you multiply its length by its width. The formula for the area of a rectangle is A = length × width.

– Triangle: The area of a triangle is calculated by multiplying its base length by its height and then dividing the result by 2. In other words, A = (base × height) / 2.

– Circle: The area of a circle is determined by multiplying the square of its radius by the mathematical constant π (pi, approximately equal to 3.14159). So, the formula for the area of a circle is A = πr², where r represents the radius of the circle.

It’s important to note that the units for area are typically in square units, such as square inches (in²), square meters (m²), or square centimeters (cm²), depending on the system of measurement being used.

Thus, knowing the specific shape or region you are working with, you can apply the appropriate area formula to find the size of its two-dimensional space.

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