In case of a hollow cylinder, inner curved surface area of a hollow cylinder $= 2 πh (R - r)$ .

True

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False

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Solution

The correct option is B False
Curved surface area :The curved surface area is defined as the area of only curved surface, leaving the circular top and base
The inner curved surface area of a hollow cylinder $= 2 π (i n n e r r a d i u s) (h e i g h t) = 2 πrh$
Hence, the statement is false

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Similar questions

Q. Which is false in case of a hollow cylinder?
(a) Curved surface area of a hollow cylinder = 2πh(R + r).
(b) Total surface area of a hollow cylinder = 2π(R + r)(h + R − r).
(c) Inner curved surface area of a hollow cylinder = 2 πh(R − r).
(d) Area of each end of a hollow cylinder = π(R² − r²).

The difference between the outer and inner curved surface area of a hollow right circular cylinder 14 cm long is 88 $c m^{2}$ . If the volume of metal used in making the cylinder is 176 $c m^{3}$ ,find the outer and inner diameters of the cylinder.

Q. The difference between the outer and inner curved surface areas of a hollow right circular cylinder 14 cm long is 88 cm². If the volume of metal used in making the cylinder is 176 cm³, find the outer and inner diameters of the cylinder. (Use π = 22/7)

The area of paper required to make a hollow cylinder is equal to the curved surface area of the cylinder.

Q. The height of a hollow cylinder is

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if external diameter is

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and total curved surface area of the hollow cylinder is

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, then its internal diameter is

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In case of a hollow cylinder, inner curved surface area of a hollow cylinder =2πh(R-r).

The correct option is B FalseCurved surface area :The curved surface area is defined as the area of only curved surface, leaving the circular top and baseThe inner curved surface area of a hollow cylinder =2πinnerradiusheight=2πrhHence, the statement is false

In case of a hollow cylinder, inner curved surface area of a hollow cylinder $= 2 πh (R - r)$ .

The correct option is B False
Curved surface area :The curved surface area is defined as the area of only curved surface, leaving the circular top and base
The inner curved surface area of a hollow cylinder $= 2 π (i n n e r r a d i u s) (h e i g h t) = 2 πrh$
Hence, the statement is false