Question

The floor of a building consists of 3000 tiles which are rhombus shaped and each of its diagonal are 45cm and 30cm in length. Find the cost of polishing the floor,if the cost per meter square is Rs4.

Answer 1

The cost of polishing the floor = Rs. 81000

Answer 2

Answer:

Step-by-step explanation:

Formula of area of rhombus=1/2×d1×d2

Area of rhombus =1/2×45×30cm^2

=675cm^2

The floor consists 3000 tiles,

then:

Area of floor=3000×675cn^2=2025000cm^2=202.5m^2

Cost of polishing 1sq.m=Rs4

Then:202.5m^2= 202.5×4 rupees

=Rs810