Question

Find the total surface area of a lunch box with dimensions
15 cm,9 cm and 8 cm

Answer 1

ANSWER:-⤵️⤵️

Dimensions are 15cm, 9cm, 8cm

Total Surface Area=2(lb+bh+hl)

=2(15*9+9*8+8*15)

=2(135+72+120)

2(327)=654cm^2

HOPE IT HELPS YOU✅✅✌✌

Answer 2

The total surface area of a lunch box is $654\ cm^2$.

Explanation:

In this case it is required to find the surface area of a lunch box with dimensions  15 cm,9 cm and 8 cm. We know that the the shape of the lunch box is cuboid. The surface area of the cuboid is given by :

$A=2(lb+bh+hl)$

$A=2(15\times 9+9\times 8+8\times 15)$

$A=654\ cm^2$

So, the total surface area of a lunch box is $654\ cm^2$. Hence, this is the required solution.

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