Question

The dimensions of cuboid are 4m,2m and 5m.What is the cost of painting all its surface Rs10 per m2?

Answer 1

Answer:

600₹

Step-by-step explanation:

LSA of cuboid = 60m²

Answer 2

❇ Given :

• Dimensions of cuboid 4m, 2m and 5m.
• Cost of painting m² = Rs.10ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

❇ To find :

• Cost of painting all its surface

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❇ Formula to be used :

Lateral surface of cuboid = 2 ( l + b) h

✒ Let's understand the question and concept :

✏So, in this question we are given to find the the surface are to be painted and then find the cost . So to find the area to be painted we will find lateral surface area of cuboid and then multiply it by Rs. 10.

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❇Solution :

Length = 4m

Breadth = 2m

Height = 5m

Lateral surface area of cuboid = 2 ( L + B)× H

➡ 2 ( 4 + 2 ) × 5

➡ 2 ( 6 ) × 5

➡ 12 × 5

$\bold {➡ 60 m^2}$

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▶ Cost of painting 60m² = 60 × 10

$\bold { = Rs. 600}$