You can check your manual calculations by using the inverse operation: taking the square root of the result to see if you return to the original number. The most famous example is the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse (c) is equal to the sum of the squares of the other two sides (a and b), expressed as a² + b² = c².
Verify Square Answers with Technology Using Square Roots and Calculations
Strategies for Larger Numbers When dealing with larger numbers, breaking the calculation into smaller components can reduce the chance of error. Instead of writing "8 times 8," you write 8².
If you have a square with a side length of 3 units, the total area covered by that square is 3 times 3, or 9 square units. You simply take the number and add it to itself the appropriate number of times.
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Because multiplying two negative values results in a positive product, the square of any negative integer is always positive. To find the square of 7, you would calculate 7 times 7.
More About How to figure a square
Looking at How to figure a square from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on How to figure a square can make the topic easier to follow by connecting earlier points with a few simple takeaways.
