Question

the floor of a building consists of 200 tiles which are rhombus shaped and each of its diagonals are 25cm and 30cm in length find the total cost of polishing the fllor if the cost per m2 is rs 10

Answer 1

Answer:

Rs. 810

Step-by-step explanation:

Solution: Length of one diagonal, d1 = 45 cm and d2= 30 cm

Area of one tile = 1/2 d1 d2

= ½ x 45 x 30 = 675

Area of one tile is 675 cm^2

Area of 3000 tiles is

= 675 3000 = 2025000 cm^2

=2025000/ 10000

= 202.50 m^2

Cost of polishing the floor per sq. meter = 4

Cost of polishing the floor per 202.50 sq. meter = 4 x 202.50 = 810

Hence the total cost of polishing the floor is Rs. 810.