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

Raymond Espinoza
Raymond Espinoza
1,989 Points

Binary operators

How do you assign the strings in area of feet ?

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

1 Answer

Justin Kraft
Justin Kraft
26,327 Points

Since height and width are assigned in inches, you must divide them by 12 (12 inches = 1 foot). The easiest solution is to consider the fact that you must divide both values by 12, thus written out mathematically you have:

(height / 12) * (width / 12)

if we multiply across we can simplify this to:

(height * width) / 144

Therefore, the solution is assigned areaInFeet to this operation