Question

Radius and slant height of a cone are 20cm and 29cm respectively find its volume

Answer 1

Answer:

8800

Step-by-step explanation:

first we find h, h=√29 sqare -20 square= 21 then v=1/3πr square × h = 1/3 ×22/7×20×20×21=8800

Answer 2

The volume of cone is 8800 cubic cm

Step-by-step explanation:

Radius of cone = 20 cm

Slant height of cone = 29 cm

$Height =\sqrt{l^2-r^2}$

$Height=\sqrt{29^2-20^2}$

Height=21

Volume of cone = $\frac{1}{3} \pi r^2 \times h = \frac{1}{3} \times \frac{22}{7} \times 20^2 \times 21 =8800 cm^3$

Hence the volume of cone is 8800 cubic cm

#Learn more :

The ratio of the radius and height of a cone is 5 : 12, respectively. its volume is 314cc. find its slant height.

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