Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Swift Basics (retired) Operators Binary Operators

What is the wrong thing about this...Help

I did everything i could but the preview tells me to remove the "h" on the last line(e.g. let areaInFeet = h <- ieght) it tells me to remove it...again...help

I would appreciate it if you could help me.

area.swift
// the height and width of a wall
let height = 120.0 // in inches
let width = 144.0 // in inches
let areaInFeet = height(120.0) + width(144.0) = 164.0

1 Answer

Finding the area requires multiplication not addition, like below:

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

let areaInFeet = height * width