Question

2.If length ,width and height of a cuboidal box are 2cm, 3cm and 4cm, find its
total surface area and lateral surface area.​

Answer 1

Answer:

Total surface area is 52 cm^2

and

lateral surface area is 28 cm ^2

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Answer 2

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• Given

➝ Length = 2cm

➝ Breath = 3cm

➝ Height = 4cm

┄───➤ $\sf{TSA \ of \ cuboid = 2 (lb + bh + lh ) }$

┄───➤ $\sf{LSA \ of \ cuboid = 2h ( l + b ) }$

Finding TSA of cube :-

TSA = 2 ( lb + bh + lh )

Putting Values : -

↬ 2 ( 2 x 3 + 3 x 4 + 2 x 4 )

↬ 2 ( 6 + 12 + 8 )

↬ 2 ( 26 )

↬ 52 cm²

➝ Therefore , TSA of cuboid is 52 cm²

Now , Finding LSA of cuboid ,

TSA of cuboid = 2h ( l + b )

Now , putting values ,

↬ 2 x 4 ( 2 + 3 )

↬ 8 ( 5 )

↬ 40 cm²

➝ Therefore , LSA of cuboid is 40cm²

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