The length, breadth and height of a rectangular box are 30 m, 25 m and 18 m respectively. Find the cost of
painting its outer surface at 12 per m ^2
Answers
Answered by
26
Total surface area =2(lb+bh+lh)
=2(750m^2+450m^2+540m^2)
=2(1740m^2)
=3480m^2.
Cost=₹12×3480
=₹41760.
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Answered by
2
Answer:
1320
Step-by-step explanation:
perimeter of the rectangle =2(l+b)
- 2(l+b)
- 2(25+30)
- 2×55
- 110
- The for painting the outer surface
- perimeter × cost for per meter
- 110 × 12
- rupees 1320
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