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The calculation of square area is very simple, if students and parents do not remember, please review through the article below.
Among the types of plane geometry, the square is considered a rather special one. The formulas for calculating the square area, square circumference … It is quite easy to remember, it is even possible to apply a lot of formulas of other shapes such as rectangles, quadrangles …. The most accurate definition of a square, how is the formula for calculating the area of a standard square? Illustrative examples make it easy to visualize and remember the formula that will be in this article.
Square area formula.
HOW TO CALCULATE THE SQUARE AREA
A square is a figure with 4 equal sides, 4 right angles. Thus, the opposite pairs of sides of the square will be parallel, the 2 pairs of adjacent sides perpendicular to each other.
The formula for calculating the square area is: S = a2 (The square area is equal to the square of length 1 right angle)
where S is the area (units are m2, a is the right-angled edge length). To make it easier for students to remember, here are 2 specific illustrations.
Example 1: Calculate the square area with sides 7 cm long.
Cup:
The problem says that the right-angled side length is 7 cm. Immediately applying the formula for calculating the square area, we get: S = a2 = 72 = 49 cm2
The response is 49 cm2
Example 2: Calculate the area of the square knowing the circumference of the square equal to 24 cm.
Cup:
The problem says that the circumference of the square is 24cm, so from the formula for calculating the circumference of the square, we will find the length of the square side: C = 4 x a = 24 => a = 6 cm
From there, applying the formula for calculating the square area we have: S = a2 = 62 = 36 cm2
A: 36 cm2
In addition to these 2 types of exercises, there are many other forms to apply the calculation of square area. Depending on the facts, the problem for you will have to find the length of the square side from which to calculate the area.
Above is an article to help you review how to calculate the square area and specific examples. If you do not remember, please save it to apply when doing math. I wish you all good studies.
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In addition, if you know how to calculate the area of a