What is 21 squared? What does 21 squared mean? What is the answer to 21 squared? Those are the questions we tackle here!
21 squared can be written as an exponentiation where the base is 21 and the exponent is 2, like this:
212
When the exponent is 2 (aka squared) and the base is 21, you simply multiply 21 by 21 to get the answer. Here is the math to illustrate:
21 squared
= 212
= 21 x 21
= 441
Therefore, the answer to "What is 21 squared?" is
441
For future reference, note that "squared" means that the exponent is 2 regardless of what the base is. Furthermore, when you get a problem like "What is 21 squared?", just picture a square where all the sides are 21. The area of the square is the same as 21 squared.
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What is 22 squared?
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