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Start your free trial###### Matthew Delange

26,584 Points# Using the sqrt method in the Math module, assign the value of the square root of 9 to the variable @sqrt.

I have found others that have had trouble with this challenge. I'm wondering if anyone has completed it. I have tried everything but nothing is working.

```
@pi = nil
@e = nil
@sqrt = nil
module Math
Math::E = @e
Math::PI = @pi
@sqrt = Math.sqrt(9)
end
```

## 3 Answers

###### Jennifer Nordell

Treehouse TeacherTake the sqrt line and put it after the end. It doesn't want it inside of the module. Hope this helps!

###### Zulèma van Gom

3,493 Points@pi = nil @e = nil @sqrt = nil

module Math Math::E = @e Math::PI = @pi Math.sqrt(9) = @sqrt end

why is this wrong?

please advice...

thank you in advance <3

###### Frederick Cowgill

26,293 PointsThis worked for me, hope this helps someone :)

@pi = nil @e = nil @sqrt = nil

module Math

Math::E = @e Math::PI = @pi end

@sqrt = Math.sqrt(9)

## Nickolas Fuentes

14,016 Points## Nickolas Fuentes

14,016 PointsThanks I was wondering why it wasn't working. Even in the question it says in the math module, which is strange.