Question

Find its height.
10. The length, breadth and height of a room are 8 m, 6.5 m and 3.5 m respectively. Find
(i) the area of 4 walls of the room.
(ii) the area of the floor of the room.
294​

Answer 1

Answer:

(i) 102.75 m

(ii) 52 m

Step-by-step explanation:

Given

L=8m

B=6.5m

H=3.5

(i) the area of 4 walls of the room.= lateral surface area=2(lb+bh+hl)

=2(8x6.5+6.5x3.5+3.5x8)

=102.75 n

(ii) Area of floor =l x b

= 8 x 6.5

=52m

Answer 2

AREA OF 4 WALLS = 2×(8×6.5) + 2 × (8×3.5)

= 2×52.0+ 2×28.0

= 104 + 56

= 160M²

AREA OF FLOOR OF THE ROOM = 6.5×3.5

= 22.75m²