# How do you find the square root of 81?

Show more Show less

## Answer  Kalie

The square root of 81 is 9

√81=√9 × 9

√81= √9^2

√81=√9

When a number is multiplied by its own then we are able to take the root of that value.

Example 1

What is the square root of 4?

Solution

4 = 2 . 2

√4 = √2^2

√4 = 2

Example 2

What is the square root of 25?

Solution

25=5.5

√25=√5^2

√25=5

### Need homework help now?

Ask your first question for free

Ask question
tutors online

Related Questions
##### (t) in °C of the pot of soup at time t (in The initial temperature of a pot of soup is 80°C. The temperature minutes) satisfies the differential equation dT di T-20 10 (a) Solve the differential equation, and find an explicit expression for the function (). By separating variables, integrating and manipulating arbitrary constants, . We are also told that so that and so . ...
Notes
Me

Log In

OR

Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view

OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.

Request Course
Submit