Question

The length breadth and height of a room are 12m 10m and 8m Find the area of the walls

Answer 1

Answer:

Hope it helps.

Step-by-step explanation:

Here we have to find only the LSA of the room as we have to find the area of the wall,

l=12m  , b=10m  h,=8m

LSA of a cuboidal room= 2(l+b)h

2(12+10)8

2*22*8

352

Therefore, Area of the walls = 352m²

Answer 2

Given:

The length of a room (l) = 12 m

The breadth of the room (b) = 10 m

The height of the room (h) = 8 m

To find:

The area of the walls of the room.

(i.e. The Curved Surface Area. CSA)

The room has the length (l), breadth (b), and height (h) are given so it is a cuboid. If they would be the same then it would be a cube.

• The formula to find the CSA of a cuboid is

CSA of cuboid = 2h(l+b) units sq.

CSA of room

= 2 * 8 (12 + 10)

= 16 * (22)

= 352 m sq.

Hence,

The area of the four walls i.e. the Curved Surface Area of the room is 352 m sq.

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More Information:

• The Total Surface Area (TSA) of a cuboid is 2( lb + bh + hl ) units sq.
• The volume of a cuboid is lbh unit sq.