Question

An architectural drawing has a scale of 2 in.: 5 ft. If the living room is 15 ft by 18 ft in real life, what is its size on the drawing?​

Answer 1

Step-by-step explanation:

15 ft * 2 in/ft = 30 in

18 ft * 2 in/ft = 36 in

so area on plan = 30*36 = 1080 in^2

on the real size area = 15*18 = 270 ft^2

well to compare them change in^2 to ft^2

there are 12 in /ft

so 144 in^2 per ft^2

so

1080 in^2 *1 ft^2/144 in^2 = 7.5 ft^2

or you could say

30 in = 30/12 ft

36 in = 3 ft

area = 90/12 ft^2 = 7.5 ft^2 luckily :)