Question

The height and the slant height of a cone are 21 cm and 28 cm respectively . Find :- ◕ Radius of the Cone
◕ Volume of the Cone​

Answer 1

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Given:

• Slant height =l=28cm
• Height of cone =h=21cm

Let r be radius of cone.

We know that,

⇒ l² = h² + r²

⇒(28)² = (21)² + r²

⇒ r² = 784=441+r²

⇒r² = 343

⇒r = 7√7 cm

Volume of cone = ⅓ πr²h

= ⅓ × π × (7√7)² × 21

= 7203π/3

= 2401πcm³

_____________________________

Final Answers:

• Radius = 7√7 cm
• Volume = 2401πcm³

_____________________________

Hope it helps :)

Answer 2

Answer:

Radius of cone = 7√7cm

volume of cone = 2401π CM

Step-by-step explanation:

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karishma see this photo and answer okay