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Maharashtra State BoardSSC (English Medium) 10th Standard

If radius of the base of cone is 7 cm and height is 24 cm, then find its slant height.

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Question

If radius of the base of cone is 7 cm and height is 24 cm, then find its slant height.

Options

  • 23 cm

  • 26 cm

  • 31 cm

  • 25 cm

MCQ
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Solution

25 cm

Explanation:

l = `sqrt(r^2 + h^2)`

= `sqrt((7)^2 + (24)^2`

= `sqrt(49 + 576)`

= `sqrt(625)`

l = 25

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Hence, the total surface area of the frustum is `square`.


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