Question

Find the curved surface area of a cone whose stant height is 10 cm base radius is 7cm​

Answer 1

Answer:

Right circular cone

Solve for surface area

A≈422.37cm²

r Radius

7

cm

h Height

10

cm

Answer 2

Required answer:

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Given question:

Find the curved surface area of a cone whose stant height is 10 cm base radius is 7 cm.

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We can solve this question using the below formula:

★ ${\boxed{\rm{A = \pi \times r + l + \pi \times r^{2}}}}$

★ ${\boxed{\rm{L = \sqrt{r^{2} + ht^{2}}}}}$

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• Let us assume 'r' as radius and 'h' as height in the below calculations.

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Calculations:

$\rightarrow\rm{\pi \times r (r + \sqrt{h^{7} + r^{2})}}$

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$\rightarrow\rm{\pi \times 7 (7 + \sqrt{10^{2} + 7^{2})}}$

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$\rightarrow\rm{422.37422 \: cm^{2}}$

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Therefore, 422.37422 cm² is the curved surface area.