Question

Find the remaining area of 4wall of a room of length 10m, breadth 6m and height 4m if it has a door of dimensions 1.5×1.2m and a window of dimension 1×0.7m .​

Answer 1

dimensions of 4 walls

l = 10m. b = 6m. c = 4m

area of 4walls = lateral surface area

= 2(l+b)h

= 2(10+6)4

= 8×16

= 128m²

dimensions of door

l = 1.5m. b = 1.2m

area = l×b = 1.5×1.2 = 1.8m²

dimensions of a window

l= 1m. b = 0.7m

area. = l×b = 1×0.7 = 0.7m²

total area = (1.8+0.7)m²= 2.5m²

remaining area of wall

= area of 4 walls–total area of doors and windows

= 128m²–2.5m²

= 125.5m²

I hope this answer helps you.

Answer 2

Answer:

I hope this answers is helpful for you 125.5m² thanks