find the cost of painting the walls of a room is 4m 50cm high and each side of the room is 6m long.the cost of painting 10 rupees per square metre
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Answer:
lsa = 2h(l+b)
= 2 × 450(600 +600)
= 2 × 450 × 1200 = 1080000 cm² or 108 m2
cost @10 per m² = 108 × 10 = 1080 rupees
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