A letter box is to be made cuboidal in shape and dimensions are 20 cm x 20 cm x 50 cm. Find the total surface area of box.
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Answered by
2
Answer:
20,000 cm .
Step-by-step explanation:
Area = length x height x breadth
= l x b x h = 20cm x 20cm x 50cm
= 20,000 cm .
ANSWER : The total surface area of box = 20,000 cm.
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Answered by
5
Answer:
The total surface area of the letter box is 4800 cm².
Step-by-step-explanation:
We have given the dimensions of a cuboidal box.
- Length ( L ) = 50 cm
- Breadth ( B ) = 20 cm
- Height ( H ) = 20 cm
We have to find the total surface area of box.
Now, we know that,
Total surface area of cuboid = 2 ( LB + BH + LH )
⇒ TSA of cuboid = 2 ( 50 * 20 + 20 * 20 + 50 * 20 )
⇒ TSA of cuboid = 2 ( 1000 + 400 + 1000 )
⇒ TSA of cuboid = 2 ( 1000 + 1000 + 400 )
⇒ TSA of cuboid = 2 ( 2000 + 400 )
⇒ TSA of cuboid = 2 * 2400
⇒ TSA of cuboid = 4800 cm²
∴ The total surface area of the letter box is 4800 cm².
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