Question

find volume and total surface area of cuboid of dimensions. l = 22 cm
b=12 cm and h =7.5 cm​

Answer 1

Answer:

The total surface area = 519 cm square.

Answer 2

Required Answer :

Here, we have to find the volume and total surface area of a cuboid, whose dimensions are :

• Length = 22 cm
• Breadth = 12 cm
• Height = 7.5 cm

Firstly let's calculate the volume of cuboid,

★ Formula :

• Volume of cuboid = l × b × h

Here,

• l denotes length
• b denotes breadth
• h denotes height

Putting the values,

⇒ Volume of cuboid = l × b × h

⇒ Volume of cuboid = 22 × 12 × 7.5 cm

⇒ Volume of cuboid = 1980 cm³

• Hence, volume of cuboid is 1980 cm³.

⠀ ⠀________________

Now, let's calculate the TSA (Total surface area) of cuboid.

★ Formula :

• TSA of cuboid = 2 (lb + bh + lh)

Putting the values,

⇒ TSA of cuboid = 2 × (22 × 12) + (12 × 7.5) + (22 × 7.5)

⇒ TSA of cuboid = 2 × (264 + 90 + 165)

⇒ TSA of cuboid = 2 × 519 cm

⇒ TSA of cuboid = 1038 cm²

Therefore, TSA of cuboid is 1038 cm².