Question

The height of a cone is 16 cm and base radius is 12 cm and its slant height is​

Answer 1

Answer:

Given height of cone =16 cm

radius of base =12 cm

(1) slant height l=

r

2

+h

2

l=

(12)

2

+(16)

2

l=

144+256

l=

400

l=20 cm

∴ slant height of cone is 20 cm

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Answer 2

$\sf{\huge{\underline{\pink{Answer :-}}}}$

➝ 20 cm

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$\sf{\huge{\boxed{\green{Explaination :-}}}}$

Given :-

• The height of a cone is 16 cm .

• The base radius of cone is 12 cm.

To Find :-

• The slant height of a cone.

Solution :-

We know that,

l² = h² + r²

➝ l = √ h² + r²

We have,

• r = 12 cm

• h = 16 cm

Finding the slant hieght,

l = √ h² + r²

➝ l = √ 16² + 12²

➝ l = √ 256 + 144

➝ l = √400

➝ l = √ 20 × 20

➝ l = 20 cm

Hence, The slant height of a cone is 20 cm.

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