Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved surface area.

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Q : 1 Diameter of the base of a cone is $\small 10.5 \hspace{1mm}cm$ and its slant height is $\small 10 \hspace{1mm}cm$ . Find its curved surface area.

Answers (1)

Given,

Base diameter of the cone = $d=10.5\ cm$

Slant height = $l=10\ cm$

We know, Curved surface area of a cone $= \pi r l$

$\therefore$ Required curved surface area of the cone=

$\\ = \frac{22}{7}\times \frac{10.5}{2}\times10 \\ \\ = 165\ cm^2$

Posted by

Nehul

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Q : 1 Diameter of the base of a cone is and its slant height is . Find its curved surface area.

Answers (1)

Posted by

Nehul

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Q : 1 Diameter of the base of a cone is $\small 10.5 \hspace{1mm}cm$ and its slant height is $\small 10 \hspace{1mm}cm$ . Find its curved surface area.