Question

Find the total area of the four walls of room dimensions 7 metre long 5 metre wide and 3 metre height.​

Answer 1

Answer:

area of 4 walls= 2(l+b)×h

=2×(7+5)×3

=72m^2

please mark as branliest

Answer 2

Area of four walls

$= 2h(l + b)$

Length(l) = 7m

breadth(b) = 5m

height(h) =3m

$= > 2 \times 3(7 + 5) \\ = 6 \times 12 \\ = 72$

Hence, area of four walls= 72m square.

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