Question

Find the area of four walls of a room whose l=3.5m b=2.5m h=3m

Answer 1

Area = 2 ( l + b ) *h
=2 ( 3.5 + 2.5) * 3
= 2 *6 *3
= 36 cm ^2
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Answer 2

Answer:

36m^2

Step-by-step explanation:

Area of 4 walls = 2× ( length × height + breadth × height)

= 2×height × (length + breadth)

= 2 × h × ( l + b)

= 2 × 3 × ( 3.5 + 2.5)

= 6 × 6

= 36 m^2