Question

What will be the curved surface area of right circular cone whose radius is 14cm and slat hight is 10 cm

Answer 1

Answer:

440

Step-by-step explanation:

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Answer 2

A n s w e r

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G i v e n

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• Radius of right circular cone is 14 cm

• Slant height of the cone is 10 cm

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F i n d

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• Curved surface area of the cone

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S o l u t i o n

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We know that the curved surface area of right circular cone can be found by :

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➠ π r l ⚊⚊⚊⚊ ⓵

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Where ,

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• r = Radius of cone

• l = Slant height

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$\underline{\bold{\texttt{Curved surface area of given cone :}}}$

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• r = 14 cm

• l = 10 cm

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⟮ Putting the above values in ⓵ ⟯

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➜ π r l

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➜ π (14)(10)

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➜ $\sf \dfrac { 22 } { 7 } \times 14 \times 10$

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➜ 44 × 10

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➨ 440 sq. cm.

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• Hence the curved surface area of the given right circular cone is 440 sq. cm.

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Additional information

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• Total surface area of a right circular cone = π(r + l) r

Where ,

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➻ r = Radius of cone

➻ l = Slant height

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• Volume of a right circular cone = 1/3πr²h

Where ,

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➻ r = Radius of cone

➻ h = Height of cone