Question

An open cylindrical vessel whose length is 42 cm and diameter is 28 cm is made up of metal sheet find
the area of metal sheet required for making the vessel.
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Answer 1

Answer:

Your answer is 3696 cm sq

Step-by-step explanation:

You have to find the curved surface area to find the are of metal sheet required

Answer 2

Area of metal sheet  required for making open vessel=$4312 cm^2$

Step-by-step explanation:

Length of cylinder=l=42 cm

Diameter of cylinder=d=28 cm

Radius of cylinder=$r=\frac{d}{2}$

Radius of cylinder=$\frac{28}{2}=14 cm$

Curved surface area of cylinder=$2\pi rh$

Where r=Radius of cylinder

h=Height of cylinder

$\pi=\frac{22}{7}$

Area of base circle=$\pi r^2$

Area of metal sheet  required for making open vessel=Curved surface area of cylinder+ area of base circle=$2\times \frac{22}{7}\times 14\times 42+\frac{22}{7}\times (14)^2=4312 cm^2$

Area of metal sheet  required for making open vessel=$4312 cm^2$

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