What is the result of 9 squared?

To find the result of 9 squared, you multiply 9 by itself. This is expressed mathematically as 9^2, which translates to 9 × 9.

Calculating that gives 9 × 9 = 81. Therefore, the result of 9 squared is indeed 81, making it the correct answer. Squaring a number involves taking that number and performing multiplication with itself, leading to a value that reflects the area of a square with each side of the length of that number.

While 18, 27, and 90 are values derived from other mathematical operations involving 9, they do not equate to 9 squared. Hence, 81 stands out as the only correct representation of 9 multiplied by itself.