Question

the length breadth & height of a enboidal room 5m,4m and 3m respectively. if we place a rod diagonally in that room what will be the length of the rod.​

Answer 1

Answer:

Length, breadth and height of a room are 5 m, 4 m and 3 m.

Area of four walls of the room =2h(l+b)

=2×3(5+4)

=6(9)

=54 sq m

Area of the ceiling =l×b

=5×4

=20 sq cm.

Total area of the four walls and the ceiling of the room

=54+20

=74 sq cm

Cost of white washing = Rs 7.50 per sq m

Total cost of white washing =74×7.50= Rs 555

Answer 2

Answer:

to find the length of rod

multiply now 5m×4m×3m = 60

Step-by-step explanation:

Hence 60 is length of rod in the room