Question

pls help...Q7............

Answer 1

area of a rhombus=1/2×(product of diagnols)
area= 1/2×(45×30)
area=1/2×1350
area of one tile=1350/2
area of one tile= 675cm^2
area of 3000 tiles = area of one tile×3000
area of 3000 tiles= 675×3000
area of 3000 tiles=2025000cm^2
cost of polishing= total area × rate(in m^2)
(2025000)cm^2 = (2025000/10000)m^2
=202.5 m^2
cost of polishing= 202.5×4
cost of polishing=Rs.810
The cost of polishing would be Rs.810
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Answer 2

Answer:

The cost of polishing would be Rs.810

Step-by-step explanation:

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