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2 years ago

A storage container consists of a box of length 90cm, width 42 cm and height 34 cm, and a lid

Mathematics

1 answer:

Ivanshal [37]2 years ago

7 0

Answer:

20079.05 cm^2,

Step-by-step explanation:

Surface area of the box without the lid

= 90*42 + 2(90*34) + 2(42*34) = 12756.

Now find Surface area of the half cylinder:

The diameter of the 2 half circles = 42 so the radius = 21.

The area of the lid

= 2 + 1/2 π (21)^2 + π r * 90

= 7323,052

Total = 20079.052

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