Question

Qno1:- find the total surface area of a cuboid whose length is 12cm, breadth is 10cm and height is 8cm.​

Answer 1

Given :

• Length of Cuboid is 12 cm .
• Breadth of Cuboid is 10 cm .
• Height of Cuboid 8 cm .

To Find :

• Total Surface Area of Cuboid .

Solution :

$\longmapsto\tt{Length\:of\:Cuboid(l)=12\:cm}$

$\longmapsto\tt{Breadth\:of\:Cuboid(b)=10\:cm}$

$\longmapsto\tt{Height\:of\:Cuboid(l)=8\:cm}$

Using Formula :

$\longmapsto\tt\boxed{T.S.A\:of\:Cuboid=2(lb+bh+hl)}$

Putting Values :

$\longmapsto\tt{2(12\times{10}+10\times{8}+8\times{12)}}$

$\longmapsto\tt{2(120+80+96)}$

$\longmapsto\tt{2(296)}$

$\longmapsto\tt\bf{592\:{cm}^{2}}$

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• Lateral Surface Area of Cuboid = 2h (l+b)
• Surface Area of Cuboid = 2(lb+bh+hl)
• Volume of Cuboid = l×b×h
• Lateral Surface Area of Cube = 4a²
• Surface Area of Cube = 6a²
• Volume of Cube = a³

____________________

Answer 2

QUESTION:-

Find the total surface area of a cuboid whose length is 12cm, breadth is 10cm and height is 8cm.

GIVEN:-

LENGTH = 12 cm.

BREADTH = 10 cm.

HEIGHT = 8 cm.

TO FIND:-

THE TOTAL SURFACE AREA OF THE CUBOID.

WE KNOW:-

THE TOTAL SURFACE AREA OF THE CUBOID

⟼ 2 × (Length x Breadth + breadth x height + Length x height)

$\large{\blue{\maltese \: \: {\pink{\underbrace{\underline{\red{\pmb{\sf{ Solution :-}}}}}}}}}$

THE TOTAL SURFACE AREA OF THE CUBOID

⟼ 2 × (Length x Breadth + breadth x height + Length x height)

⟼2 × (120 + 80 + 96)

⟼ 2 × ( 12 cm × 10 cm + 10 cm × 8 cm + 12 cm × 8 cm)

⟼ 592 cm².

$\large{\blue{\maltese \: \: {\pink{\underbrace{\underline{\red{\pmb{\sf{ Answer :-}}}}}}}}}$

THE TOTAL SURFACE AREA OF THE CUBOID IS 592 cm².