```
Please help me !!
What I am doing wrong?
function Circle (radius,raio) {
this.radius = radius;
this.area = function () {
return Math.PI * this.radius * this.radius;
};
this.raio = raio;
this.perimeter = function(){
return 2*Math.PI*this.raio;
};
Thank you for help !:D
```

# 33/33 Methods What i am doing wrong?

**cssace49372**#1

**dave.n**#2

Remove all references to `raio`

and `this.raio`

and change this line,

to refer to **this.radius** and not **this.raio**.

**maneeth**#5

Please help me!!!!

For some reason this isn't working!

this.perimeter = function () {

return (2 * Math.PI * this.radius);

};

**system**#7

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