Question

A room is 24 feet long, 18 feet wide, and 9 feet high. How many square yards of wallpaper are needed to paper the four walls of the room?

Answer 1

for the four walls of the room u need to calculate the lateral surface area of a cuboid....

Answer 2

Compute perimeter
36+48=84
Walls are 9 ft high compute sq ft of paper=9x84=756 divide by 9 to get sq yds
84 sq yds,

Answer 3

Lateral surface area of a cuboid = 2 (Length + Breadth) × Height

now put in the values of length, breadth and height...

Answer 4

@radar
why calculate perimeter??????

Answer 5

You did it too lol

Answer 6

no I hv not calculated PERIMETER
I am calculating area!!!!!!

Answer 7

What do you call 2( length + breadth)

Answer 8

U hv not put in the formula, and it appeared out of context, thats all......

Answer 9

I just did it in two steps.
Step 1 comput perimeter
Step 2 multiply by heighth (9)

Answer 10

area of paper required = 2(24 ft + 18 ft) x 9 ft
= 84 ft x 9 ft = 756 ft^2

Answer 11

and......

Answer 12

read the question. what unit do they want the amount of wallpaper in???

Answer 13

1 sqft = 1/9 sqyard or 0.111 sq yard

so in sq yards the area of paper required = 756 x 0.111 = 83.92 sqyards

Answer 14

or if u use 1/9, u get 84 sqyards

Answer 15

Yes, are you could of converted all the dimensions to yds to begin with lol
6 8 3

Answer 16

i guess to a student who does not know how to do the question, the explanation shud b full but simple. They hv not understood the concept or they wud not b asking :))