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# code

```// 1. Attach this file geometry.js to the index.html file

// 2. Create a function that calculates the area of a rectangle.
//    The function should accept the width and height as arguments
//    and return the area of that rectangle.
//    The area of a rectangle is the width * height
var message;
var totalArea;
var totalVolume;
var circleArea;
var sphereVolume;

function area(width, height){

while(isNaN(width)){
width = prompt("what is the width of the circle?")
width = parseFloat(width)

if(isNaN(width)){
alert("The width input is not a number, try again")
}
}
while(isNaN(height)){
height = prompt("what is the height of the circle?")
height = parseFloat(height)

if(isNaN(height)){
alert("The height input is not a number, try again")
}
}
}
alert("The area of the circle is " + area())
console.log(area)

// 3. Create a function that calculates the volume of a rectangular prism.
//    The function should accept the width, height and length as arguments
//    and return the volume of that rectangular prism.
//    The volume of a rectangular prism is the width * height * length

function volume (width, height, lenght){

while(isNaN(width)){
width = prompt("what is the width of the rectangular prism?")
width = parseFloat(width)

if (isNaN(width)){
alert("The width input is not a number, try again")
}
}
while(isNaN(height)){
height = prompt("what is the height of the rectangular prism?")
height = parseFloat(height)

if (isNaN(height)){
alert("The height input is not a number, try again")
}
}
while(isNaN(lenght)){
lenght = prompt("what is the lenght of the rectangular prism?")
lenght = parseFloat(lenght)

if (isNaN(lenght)){
alert("The lenght input is not a number, try again")
}
}
}
alert("The volume of the rectangular prism " + volume())
console.log(volume)

// 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

alert("The height input is not a number, try again")
}
}
}
alert("The area of the circle is " + circleArea())
console.log(circleArea)

// 5. Create a function that calculates the volume of a sphere.
//    The function should accept the radius of the sphere as an argument
//    and return the volume.
//    The volume of a circle is: 4/3 *  π * radius^3

alert("The height input is not a number, try again")
}
}
}
alert("The area of the circle is " + sphereVolume())
console.log(sphereVolume)

// 6. Use console.log to test each function and output to the JavaScript console
//    Here are the values to test and the expected results
//    -- Area of rectangle that is 5 wide and 22 tall: 110
//    -- Volume of a rectangular prism that is 4.5 x 12.5 x 17.4: 978.7499999999999
//    -- Area of a circle that with a radius of 7.2: 162.8601631620949
//    -- Volume of a spehere with a radius of 7.2: 1563.4575663561109

message = "<h1>Here are your results:</h1>"
message += "<br>"
message += "<h3>The area of the circle is " + totalArea + "</h3>";
message += "<h3>The volume of the rectangular prism is " + totalVolume + "</h3>";
message += "<h3>The area of the circle is " + circleArea + "</h3>";
message += "<h3>The area of the circle is " + sphereVolume + "</h3>";

document.write(message);
```

I think you'll get more replies if you link to some working code!