Question

The base radius and height of the cone is 21 cm and 28 cm respectively. Find volume of the cone. how do i answer the question

Answer 1

Given:

Radius of cone, r= 21 cm

Height of cone, h= 28 cm

To Find:

Volume of the cone

Solution:

We know that that,

Volume of a cone V  is given by

$\pink{\boxed{\bf{V=\dfrac{\pi r^{2}h}{3}}}}$

where

r is radius of cone

h is height of cone

$\rule{190}{1}$

Let the volume of given cone be V

So,

$\longrightarrow\rm{V=\dfrac{\pi r^{2}h}{3}}$

$\longrightarrow\rm{V=\dfrac{\dfrac{22}{7}\times(21)^{2}\times28}{3}}$

$\longrightarrow\rm{V=\dfrac{\dfrac{22}{7}\times441\times28}{3}}$

$\longrightarrow\rm{V=\dfrac{22\times441\times28}{7\times3}}$

$\longrightarrow\rm{V=\dfrac{\cancel{271656}}{\cancel{21}}}$

$\longrightarrow\rm\green{V=12936}$

Hence, the volume of given cone is 12936 cm³

Answer 2

Answer:

your answer is 12936cm³

Step-by-step explanation:

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