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iOS Swift Basics (retired) Operators Binary Operators

Riley Spencer
Riley Spencer
1,753 Points
Posted by Riley Spencer
Riley Spencer
1,753 Points

Can't Complete Binary Operators Challenge 1

So, I just finished watching the first video on Binary Operators, and now I'm onto the challenge, but I can't complete it! I understand what the task is telling me to do: times the height and width together, and then divide the result by 12.

As you can see in the attached code, I have times the two measurements together in a constant called area, and then divided the results by 12 in a different constant named areaInFeet (it's called areaInFeet because the task told me to name it that).

Any help would be appreciated!

area.swift 
// the height and width of a wall
let height = 120.0 // in inches
let width = 144.0 // in inches
let area = height * width
let areaInFeet = area / 12

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

You can do it in one line, no need for an extra area variable; also, the math isn't quite correct.

let areaInFeet = (height / 12) * (width / 12)

That should do it. height and width both need to be in unit of feet before multiplying to get the areaInFeet.

Riley Spencer
Riley Spencer
1,753 Points
Riley Spencer
Riley Spencer
1,753 Points

Oh, ok! That makes a lot more sense. Thankyou!