Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift Basics (retired) Operators Binary Operators

Chirs Davies
Chirs Davies
6,379 Points
Posted by Chirs Davies
Chirs Davies
6,379 Points

help please

Given the height and width of a wall in inches, calculate the area in feet and assign it to a constant named areaInFeet.

// the height and width of a wall let height = 120.0 // in inches let width = 144.0 // in inches

let areaInFeet = 22

5 Answers

Logan R
Logan R
22,989 Points
Logan R
Logan R
22,989 Points

You need to make sure you divide the length and width by 12 before setting the constant because those are in inches, while the constant is in feet.

let height = 120.0 / 12 
let width = 144.0  / 12

also,

let areaInFeet = 22

Make sure you use a variable * a variable, not 22.

Chirs Davies
Chirs Davies
6,379 Points
Chirs Davies
Chirs Davies
6,379 Points

sorted it. cheers for the help!

Papaijas jr.
Papaijas jr.
8,016 Points
Papaijas jr.
Papaijas jr.
8,016 Points

The answer is let areaInFeet = Double(10 * 12)

Papaijas jr.
Papaijas jr.
8,016 Points
Papaijas jr.
Papaijas jr.
8,016 Points

Never mind I just got it thanks!

ellie adam
ellie adam
26,377 Points
ellie adam
ellie adam
26,377 Points

let height = 120.0 / 12 let width = 144.0 / 12

let areaInFeet = height * width

works for me

Adam Mazurick
Adam Mazurick
Courses Plus Student 7,653 Points

This is the best answer, however, statements on one line should be separated by a ;