Question

length =15cm breadth =1.2cm height =8cm . find the total surface area of a cuboid .​

Answer 1

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Question:-

• Find TSA of cuboid

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Answer:- 295.2 cm^2

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Step by step explanation:-

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Given :-

• Length = 15 cm
• Breadth = 1.2 cm
• height = 8 cm

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Solution:-

We know that TSA of cuboid = 2 (lb + bh + lh)

So put the given dimensions in formula

T.S.A of cuboid

= 2 {(15×1.2)+(1.2×8)+(15×8)}

=2( 18+9.6+120)

= 295.2cm^2

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More information:-

• C.SA of cuboid is 2h(l+h)
• Cuboid is a solid figure or we can say it's a 3d figure.
• Cuboid consists of rectangular faces.
• Examples :- Box , bricks..etc

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Answer 2

★Given -

• Length( l ) = 15cm

• Breadth( b ) = 1.2cm

• Height( h ) = 8cm

★To Find -

• Total Surface Area of Cuboid

★Explanation -

Formula :-

$\sf{\underline{\boxed{\red{T.S.A=2( lb+bh+hl )}}}}$

$\implies\sf{2[15(1.2)+1.2(8)+8(15)]}$

$\implies\sf{2[18+9.6+120]}$

$\implies\sf{2[147.6]}$

$\implies\sf{295.2\:\ cm^{2}}$

$\bf{\underline{\underline{\green{Related\:Points}}}}$

• Surface Area is the area covered by the surface

• Unit of Area is sq. units.