Question

find the area of four walls of a room if it's length 12m, breadth 10m, height 7.5m

Answer 1

Answer:

330 square metres

Step-by-step explanation:

Area of four walls = LSA of cuboid

=> 2h(l+b)

Given,

Length (l) = 12m

Breadth(b)=10 m

Height (h)=7.5 m

=> 2h(l+b)

=>2*7.5(12+10)

=>15(22)

=> 330 sq metres.

Hope it helps ^_^

Answer 2

HERE is YOUR answer

Given
length ( l ) = 12cm
breadth ( b ) = 10cm
height ( h ) = 7.5cm

Area of 4 four walls of a room ( rectangle shape )

======> 2h ( l + b )

======> 2 × 7.5 ( 12 + 10 )

======> 2 × 75/10 ( 22 )

======> 15 × 22

======>330 m square



HOPE this helps you