Question

find the total surface area of cuboid whose length is 20 m breadth is 11 m and height is 10 m​

Answer 1

Answer

$\purple{\bigstar}$The total surface area of cuboid ⟶ $\boxed{\sf{\red{1060~cm^2}}}$

• Given

• Dimensions of a cuboid -
• Length of cuboid = 20 m
• Breadth of cuboid = 11 m
• Height of cuboid = 10 m

• To find

• Total surface area of cuboid

• Solution

$\purple{\bigstar}$ $\boxed{\underline{\sf{Total~surface~area~of~cuboid = 2(lb + bh + hl)}}}$

Substitute the given values,

⟶ 2(20 × 11 + 11 × 10 + 10 × 20)

⟶ 2(220 + 110 + 200)

⟶ 2(530)

⟶ 1060 cm²

• Total surface area of cuboid = 1060 cm²

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Some related formulae -

• Total surface Area of cuboid = 2(lb + bh + hl)
• Volume of cuboid =  length × breadth × height
• Perimeter of cuboid = 4 (length + breadth + height)
• Total surface area of cube = 6 × side²
• Volume of cube = side³
• Perimeter of cube = 12 × side

Answer 2

Answer:

TSA of Cuboid = 2 (lb + bh + lh)

= 2 (20 x 11 + 11 x 10 + 20 x 10)

= 2 (220 + 110 + 200)

= 2 (530)

= 1060

Step-by-step explanation:

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