Math, asked by faheemabdulbasheer, 1 month ago

A wooden article was made by scooping out a hemisphere from each end of a solid cylinder. If the height of the cylinder is 12 cm and its base is 4.2 cm, find the total surface area of the article. Also find the volume. Use π = 22/7

Answers

Answered by bsrinivasali76
1

Answer:

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Step-by-step explanation:

We have

Height of cylinder= 10cm

radius of base= 3.5cm

Total surface area of the article =Curved surface area of the cylinder +2 surface area of a hemisphere

=2πrh+2(2πr

2

)

=2πr(h+2r)

=2×

7

22

×3.5(10+2×3.5)cm

2

=374cm

2

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