Calculate Side Length: Finding Square Root of 16 Square Units

A square has an area of 16.

How long are its sides?

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Find the side of the square
00:03 Use the formula for calculating the area of a square (side squared)
00:11 Substitute appropriate values and solve to find the side
00:17 Take the square root
00:25 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

A square has an area of 16.

How long are its sides?

2

Step-by-step solution

Remember that the area of a square is equal to the side of the square squared.

The formula for the area of a square is:

S=a2 S=a^2

Calculate the area of the square:

16=a2 16=a^2

Calculate the square root:

16=a \sqrt{16}=a

4=a 4=a

3

Final Answer

4 4

Practice Quiz

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Look at the square below:

111111

What is the area of the square?

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