Math, asked by muskan65226, 3 months ago

Find the area of 4 walls of a cuboidal room with length 35 m, breadth 30 m and height 28 m.​

Answers

Answered by siddhip2611
0

Answer:

It is given that length, breadth and height of a room are 8 m, 5 m and 3 m respectively.

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

A=2h(l+b)=2×3(8+5)=6×13=78 m

Area of the ceiling is:

A=l×b=8×5=40 m

Total area of the four walls and the ceiling of the room is 78+40=118 m

It is given that cost of white washing is Rs.15/m

therefore,

Total cost of white washing is:

118×15=1770

Hence, the cost of white washing the walls is Rs.1770.

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