Understanding Square Roots

This video tutorial explains the concept of square roots using a square with an area of 25 cm². It covers both positive and negative square roots, introduces the square root symbol (radical), and discusses square roots of non-perfect squares, which are often irrational numbers. The video also demonstrates how to use a calculator to find square roots and provides practice questions for viewers to solve.

What is the square root of 25?

• 6

• 3

• 4

• 5

Which of the following numbers is also a square root of 25?

• -3

• -4

• -6

• -5

What is the symbol used to represent a square root called?

• Logarithm

• Factorial

• Exponent

• Radical

If a number is not a perfect square, what type of number is its square root?

• Rational

• Irrational

• Whole

• Integer

How can you find the square root of any number using a calculator?

• By using the square root button

• By using the multiplication button

• By using the subtraction button

• By using the addition button