Question

surface area and volun
occupy 4 square metres of space. Find the cost of papering the remaining portion of
the walls with paper 75cm wide at the rate of 2.40 per metre.
dimen
8. A room is 6m long, 5m wide and 4m high. The doors and windows in the room​

Answer 1

Step-by-step explanation:

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Class 9

MATHS

SURFACE AREA AND VOLUME

The length, breadth and height of a room are 9 m, 7 m and 4 m respectively. There are two doors measuring

and four windows measuring

. Find the area doors remaining walls.

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Text Solution

Solution :

Area of four walls

<br>

<br>

<br> Area of 1 door

<br> Area of 2 doors

<br> Area of 1 window

<br> Area of 4 windows

<br> Now, area of remaining walls = area of four walls - area of (doors + windows) <br>

<br>