Question

Find the total surface area of a cuboid with dimension 30cmx20cmx15cm. *​

Answer 1

Answer:

10000 N/M²

Explanation:

Dimensions 30cm × 30 cm × 15 cm = 0.3m ×0.2m × 0.15m.

The resting surface has an area = 0.2 × 0.15 =0.03m²

Weight of the cuboid = 30 × 10 = 300 N

pressure = force(weight) / Area = 300/0.03 = 10000 N/M²

Answer 2

Answer:

• 2700 cm³

Step-by-step explanation:

Given

• Length = 30 cm
• Breadth = 20 cm
• Height = 15 cm

To find

• Total surface area of cuboid.

Solution

↪ T.S.A = 2(lb + bh + hl)

↪ Where,

• l - length
• b - breadth
• h - height

↪ ATP,

• l - 30 cm
• b - 20 cm
• h - 15 cm

↪ Substituting we get,

• 2(30 × 20 + 20 × 15 + 15 × 30)
• 2(600 + 300 + 450)
• 2(1350)
• 2700

∴ Total surface area is 2700 cm³.