A tablet is to be sent as a gift to a person- The shopkeeper has to wrap the tablet which is in a box of dimensions 20 cm - 10 cm - 5 cm- How much paper would be required to wrap it- assuming negligible thickness

Length = 20 cm nbsp; Breadth = 10 cm Height = 5 cm We have to cover all the 6 faces of the box. So, nbsp;we have to apply total surface area. Amount of pa ...

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Standard VIII

Mathematics

Total Surface Area of a Cuboid

A tablet is t...

Question

A tablet is to be sent as a gift to a person. The shopkeeper has to wrap the tablet which is in a box of dimensions 20 cm $\times$ 10 cm $\times$ 5 cm. How much paper would be required to wrap it? (assuming negligible thickness)

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Solution

Length = 20 cm
Breadth = 10 cm
Height = 5 cm

We have to cover all the 6 faces of the box. So, we have to apply total surface area.
Amount of paper required = 2 (lb + bh + lh)
= $2 (20 \times 10 + 5 \times 10 + 20 \times 5)$
= $2 (200 + 50 + 100)$
= $700 c m^{2}$

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A tablet is to be sent as a gift to a person. The shopkeeper has to wrap the tablet which is in a box of dimensions 20 cm × 10 cm × 5 cm. How much paper would be required to wrap it? (assuming negligible thickness)

Length = 20 cm Breadth = 10 cm ​Height = 5 cm We have to cover all the 6 faces of the box. So, we have to apply total surface area. Amount of paper required = 2 (lb + bh + lh) = 2(20×10+5×10+20×5) = 2(200+50+100) = 700 cm2

A tablet is to be sent as a gift to a person. The shopkeeper has to wrap the tablet which is in a box of dimensions 20 cm $\times$ 10 cm $\times$ 5 cm. How much paper would be required to wrap it? (assuming negligible thickness)

Length = 20 cm
Breadth = 10 cm
Height = 5 cm

We have to cover all the 6 faces of the box. So, we have to apply total surface area.
Amount of paper required = 2 (lb + bh + lh)
= $2 (20 \times 10 + 5 \times 10 + 20 \times 5)$
= $2 (200 + 50 + 100)$
= $700 c m^{2}$