Question

the radius and slant height of cone is 2cm and 6cm respectively it's curved surface area is. ​

Answer 1

$\underline{\huge{\gray{\textsf{\textbf Answer :-}}}}$

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$\sf\large\bold{\orange{\underline{\blue{ Given :-}}}}$

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• The radius of cone is 2 cm

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• The slant height of that cone is 6 cm

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$\sf\large\bold{\orange{\underline{\blue{ To \: Find :-}}}}$

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• Curved surface area of cone

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$\sf\large\bold{\orange{\underline{\blue{ Solution :-}}}}$

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

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➠ 2πrl ⚊⚊⚊⚊ ⓵

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Where ,

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• r = Radius

• l = Slant height

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$\underline{\bold{\texttt{For given cone :}}}$

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• r = 2

• l = 6

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⟮ Putting these values in ⓵ ⟯

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➜ 2πrl

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➜ $\sf 2 \times \dfrac { 22 } { 7 } \times 2 \times 6$

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➜ $\sf \dfrac { 528 } { 7 }$

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➨ 75.42 sq. cm.

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• Hence the curved surface area of the given cone is 75.42 sq. cm.

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Additional information

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Total surface area of cone

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• πr(l + r)

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Where,

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➻ r = Radius

➻ l = Slant height

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Volume of cone

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• $\sf \dfrac { 1 } { 3 } × \pi × r ^2 × h$

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Answer 2

Answer:

Ayan po sagot

Step-by-step explanati