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// 4. Create a function that calculates the area of a circle. // The function should accept the radius of the circle as an argument // and return the area of that circle. // The area of a circle is the value of π * radius^2

My solution was

```function areaCircle(radius) {
}
```

In the solution video Dave’s solution was

```function areaCircle( radius ) { As used here, the function just raises "radius" to the power of 2, which is mathematically equivalent to multiplying it by itself. While Dave's solution implements the formula more literally, yours is perfectly acceptable and will produce the same results. 