Question

A closed cylindrical tank of radius 7 m and height 3 mis
made from a sheet of metal. How much sheet of metal is
required?
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Answer 1

Answer:

and aj so so cl MSM shock

Answer 2

Question :-

A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How many sheets of metal is required?

Given :-

• Radius = 7 cm

• Height = 3m

To find :-

• How much sheet of metal is

required?

Solution :-

Area of metal sheet required = Total surface area of the cylindrical tank

= 2πr(h + r)

= 2 × $\dfrac{22}{7}$ × 7(3 + 7)

= 2 × $\dfrac{22}{7}$ × 7 × 10

= 440 ${cm}^{2}$

__________

Hence, the required area of sheet

= 440${cm}^{2}$