The curved surface of a right circular cone is a sector of a circle.

True

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False

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Solution

The correct option is A True

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Similar questions

Q. A sector containing an angle of

120^{\circ}

is cut off from a circle of radius

21

cm and folded into a cone by joining the radii. Find the curved surface area of the cone.

(π = \frac{22}{7})

Q. A sector containing an angle of

120^{o}

is cut off from a circle of radius

21 c m

and folded into a cone. Find the curved surface area of the cone. (Take

π = \frac{22}{7}

)

Q. The curved surface area of a right circular cone of height

84 c m

and diameter

70 c m

is:

Q. A right circular cone of vertical height

24 c m

has volume

1232 c m^{3}

. Its curved surface area is:

Assertion: Curved surface area of a right circular cone is $π \times$ radius of base $\times$ slant height.
Reason: Curved surface area of a right circular cylinder is $2 \times π \times$ radius of base $\times$ height.
Which of the following is correct?

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