Question

the dimensions of a room are 8m by 6.5m by 4m. find the cost of papering its walls by a wallpaper 50cm wide at the rate of Rs. 135 per meter.​

Answer 1

MARK ME AS BRAINLIEST

As the room is a cuboid ,

so, we have to find the lateral surface area of the cuboid i.e,four walls of the room,

so,

we know that lateral surface area of a cuboid(in this case a room) =2h(l+b)

Length (l)=16m

Breadth(b)=12m

Height(h)=8m

by applying the formula we get,

2*8(16+12)

= 16*28

=448 m^2

now, it is given that to paper the wall with 2m wide paper

so,

448÷2=224

papering at Rs. 50 per metre

so,224×50= Rs.11,200

Read more on Brainly.in - https://brainly.in/question/736741#readmore

Answer 2

Step-by-step explanation:

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