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80 squared, (80)2, is the number you get when multiplying 80 times 80.
It can also be looked at as exponentiation involving the base 80 and the exponent 2.
The term is usually pronounced eighty times eighty or eighty squared.
The square of 80 is a perfect square because the number is the product of the two equal integers 80.
It can be written as 80 × 80 or in exponential form.
Read on to learn everything about the number eighty squared, including useful identities.
80 × 80 = 6,400
The inverse operation of squaring eighty is extracting the square root of 80, explained here.
In the next section we elaborate on what is 80 squared and there you can also find our calculator.
What is 80 Squared?
A square is a flat shape with four equal sides; every angle is 90°.
Hence, a square with side length 80 has an area of 6,400.
80 squared equals the sum of the first 80 odd numbers:
In addition, the number can be calculated from 79 squared using the following identity:
n2 = (n − 1)2 + (n − 1) + n = (n − 1)2 + (2n − 1)
(80)2 = 792 + 79 + 80 = 792 + 159 = 6,400
It can be also be computed from 79 squared with this identity:
n2 = 2 x (n − 1)2 − (n − 2)2 + 2
(80)2 = 2 x 792 – 782 + 2 = 2 x 6241 – 6084 + 2 = 6,400
The difference between the perfect square of 80 and its predecessor, 79, can be calculated with the identity n2 − (n − 1)2 = 2n − 1:
2 x 80 – 1 = 159 = (80)2 – 792 = 6,400 – 6241 = 159
80 is even, and the square numbers of even numbers are also even: (2n)2 = 4n2.
Squares of even numbers like 80 are divisible by 4 for
If you want to calculate the square of any number, not only integers like 80, you can use our calculator above.
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A square similar to 80 is, for example: square of 82.
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The following table contains the squares of numbers close to 80.
By reading so far you know all about squaring the number 80 and calculating it using recursive methods, or as sum, product or by exponentiation.
80 squared is equivalent to 6,400.
If you were searching for what is 80 squared in math or if you typed whats 80 squared in the search engine you now have all the answers, too.
The same goes for searches like square80, and 80 to the 2nd power, just to name a few more examples people are often looking for.
Note that you can also find many perfect squares including 80 squared using the search form in the sidebar of this page.
Ahead is the summary of our information.
To sum up,
80 squared = 80 × 80 = (80)2 = 6,400.
The exponentiation form is mostly used to denote eighty squared.
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