Question

the edge of cubical room is 10m Find the sum of its lateral surface area and ceiling area​

Answer 1

Answer:

500 m²

Step-by-step explanation:

Edge of cubical room (a) = 10m

i) Lateral surface area = 4a²

= 4×(10)²

= 4×100

= 400 m²

ii) Ceiling area = a²

= (10 m)²

= 100 m²

Sum of lateral surface area + ceiling area = 400 m² + 100m²

= 500 m²

•••♪

Answer 2

Solution

16 cm is the edge of cubical room.

a² is the ceiling area.

Hence

(1)

= 4 × (10)²

= 4 × 100

= 400 m²

(2)

= 10 m²

= 100²

Now adding both we get

400 m² + 100 m² => 500 m²