The area of four walls of room whose dimensions 12mt × 8mt × 5mt is

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Q.

$The area of four walls of room whose dimensions 12 mt \times 8 mt \times 5 mt is$

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a

500 sq.mts

b

100 sq.mts

c

1000 sq.mts

d

200 sq.mts

answer is D.

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Detailed Solution

Area of four walls of room(L.S.1)

$= 2 h l + b$

$= 25 12 + 8$

$= 10 × 20$

$= 200 c m 2$

1

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