Question

Find the total surface area of a cuboid with dimensions 6 cm, 5 cm and 3 cm. Also, find the cost of painting its lateral surface at 75 per cm³​

Answer 1

Answer:

area of cuboid is =2×(lb +lh+bh)

ATQ

2×(30+18+15)

2×63=126cm^2

Cost of per cm square =₹25

Cost of 126cm square =126×25=3150₹

Step-by-step explanation:

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Answer 2

Answer:

Total surface area of cuboid= 2(lb+bh+lh)

• =2(6*5+5*3+6*3)
• =2(30+15+18)
• =2*63
• =126 cm²

Total cost of painting= 126*75

• =9450