the floor of a building consists of 3000 tiles which are Rhombus in shape and each of its diagonal are 45 cm and 30 cm in length the cost of polishing the floor if the cost per metre square is rupees four
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Answer:
8100 rupees
Step-by-step explanation:
area of rhombus = 1/2 * (product of diagonals)
so area of 1 rhombus = 1/2 * 30 *45 = 675 sq cm
area of 3000 tiles = 675 * 3000 = 2025000
cost per sq metre = 4 rupees
1 sq metre = 1000 sq cm
cost of 1 sq cm = 4 / 1000
cost of 2025000 sq cm = 4 / 1000 * 2025000
= 8100 rupees
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