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iOS Swift Basics (retired) Operators Binary Operators

Jorge Ayala
Jorge Ayala
1,022 Points
Posted by Jorge Ayala
Jorge Ayala
1,022 Points

How do you find the area in feet of constants given the area and width in inches.

height is 120.0 inches width is 144.0 inches and they're both constants "let"

area.swift 
// the height and width of a wall
let height = 120.0 // in inches
let width = 144.0 // in inches
gianpierovecchi
gianpierovecchi
15,043 Points 
// 1 foot = 12 inches
let area = (height * width) / 12

If I understood the question.

Anjali Pasupathy
Anjali Pasupathy
28,883 Points
Anjali Pasupathy
Anjali Pasupathy
28,883 Points

You need to divide by 144, not 12. height and width are both in inches, so you need to convert both to feet.

let height = 120.0 // in inches
let width = 144.0 // in inches
/*
 Converting inches to feet:
   heightInFeet = height / 12
   widthInFeet = width / 12
 Calculating area:
   areaInSquareFeet = heightInFeet * widthInFeet
   areaInSquareFeet = (height / 12) * (width / 12)
   areaInSquareFeet = height * width / (12 * 12)
   areaInSquareFeet = height * width / 144
*/
let area = height * width / 144
gianpierovecchi
gianpierovecchi
15,043 Points

Thanks for the correction Anjali :)

Jorge Ayala
Jorge Ayala
1,022 Points
Jorge Ayala
Jorge Ayala
1,022 Points

Thank you for the help, I can see where I was making the mistake and corrected it.