pleeez fast 7th question
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Area of rhombus =1/2×(Product of its diagonals)
Area of each tile
=1/2×45×30
= 675 cm2
Area of 3000 tiles = (675 × 3000) cm2 = 2025000 cm2= 202.5 m2
The cost of polishing is Rs 4 per m2.
Cost of polishing 202.5 m2 area = Rs (4 × 202.5) = Rs 810
Thus, the cost of polishing the floor is Rs 810.
hope this helps!!
cheers!! (:
Area of each tile
=1/2×45×30
= 675 cm2
Area of 3000 tiles = (675 × 3000) cm2 = 2025000 cm2= 202.5 m2
The cost of polishing is Rs 4 per m2.
Cost of polishing 202.5 m2 area = Rs (4 × 202.5) = Rs 810
Thus, the cost of polishing the floor is Rs 810.
hope this helps!!
cheers!! (:
Triyan:
please follow me!!
:P
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1/2 45 30= 1350 4 1350 = 5400
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