A number that when multiplied by 2 gives an even number.
The non-negative value that when multiplied by itself gives the original number.
A number that can halve any integer it divides.
A number that equals its square.
By the pie symbol π.
Using the tangent symbol tan.
Using the square root symbol √.
With the division symbol ÷.
4
8
16
2
9
7
10
81
By multiplying the number by itself.
Subtract one from the number.
Using estimation or a calculator.
By converting the number to a fraction.
It forms a triangle.
It represents the side length of a square with that area.
It is a line that intersects a circle.
It's a ratio of two parts of a rectangle.
The square root of a number x is equivalent to raising x to the power of 1/2.
The square root is half the exponent.
Exponentiation divides the number by itself.
Square root eliminates all exponents.
In real numbers, the arithmetic square root of a negative number is not defined.
It becomes positive automatically.
It can be solved using addition.
A negative number gains an additional negative root.
0
1
Undefined
Any positive number
By pressing the addition button.
By doubling the number.
Most calculators have a √ button which can be used to compute the square root of a number.
Press the division button repeatedly.
5/2 or 2.5
3
6
5
Because negatives cannot exist in mathematics.
By definition, the arithmetic square root is always positive or zero because it represents the length or magnitude.
It was defined in history that way.
It always results in odd numbers which are non-negative.
0.5
10
1
5
No, it must always be a whole number.
Only when the number is an even integer.
Yes, the arithmetic square root of a non-perfect square is often an irrational number.
Only if the number is negative.
24
12
14
6