CBSE · Class 6-12

Back to Surface Areas and Volumes

Class 10 · Mathematics (Standard) · Unit 12: Surface Areas and Volumes

Cone and Slant Height

Lesson 2 of 5

Cone (radius

r

, height

h

, slant

\ell

):

\ell = \sqrt{r^2 + h^2}

; CSA

= \pi r\ell

, TSA

= \pi r(r + \ell)

, vol

= \tfrac{1}{3}\pi r^2 h

. Notice cone volume is one-third of a cylinder with same base and height.

Standard Solid Formulas

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