Question

find the total surface of a cuboid which is 7.5cm long,2cm wide and 3.5cm long​

Answer 1

Answer:

Hence, the total surface of a cuboid is 96.5 cm^2.

Step-by-step explanation:

Let, the length, breadth and height of the cuboid be l, b and h respectively.

Therefore,

The total surface of a cuboid = 2( lb + bh + lh )

= 2( 7.5*2 + 2*3.5 + 7.5*3.5 )

= 2( 48.25 )

= 96.5 cm^2

Answer 2

Given:

✰ Length of cuboid = 7.5cm

✰ Breadth of cuboid = 2cm

✰ Height of cuboid = 3.5m

To Find:

✰ Total surface Area

Solution:

✰ As we know that, Total Surface Area of Cuboid is given by 2 (lb + bh + hl) . Now in this question, Length, Now in this question, Length, Breadth and Height of the Cuboid are given. So simply we will put the given values in the formula to find the Total Surface Area of the Cuboid.

⟼ TSA = 2 (lb + bh + hl)

⟼ TSA = 2(7.5 ×2 + 2 ×3.5 + 3.5 ×7.5)

⟼ TSA = 2(15 + 7 + 26.25)

⟼ TSA = 2(22 + 26.25)

⟼ TSA = 2 × 48.25

⟼ TSA = 96.2cm²

∴ The total surface area of cuboid is 96.2cm²

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