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wambold3
23.04.2020 •
Mathematics
What is the value of x if the volume of the cone is 12 pi m3
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Ответ:
Height of the cone = 4 m
Step-by-step explanation:
Given:
Volume of a cube = (12π) m^3
Radius of the cone = (6/2) m = 3 m
We have to find the value of "x".
And "x" is the height of the cone from the figure shown.
Formula to be used:
Volume of the cone: 1/3(πr^2h)
Here height = "x"
⇒![V_c_o_n_e=\frac{\pi r^2 h}{3}](/tpl/images/0620/2788/45634.png)
⇒![V_c_o_n_e=\frac{\pi r^2 x}{3}](/tpl/images/0620/2788/1ee39.png)
⇒![3\times V_c_o_n_e=\frac{\pi r^2 x}{3}\times 3](/tpl/images/0620/2788/a8583.png)
⇒![3\times V_c_o_n_e=\pi r^2 x](/tpl/images/0620/2788/21785.png)
⇒![\frac{3\times V_c_o_n_e}{\pi r^2} =\frac{\pi r^2\times x}{\pi r^2}](/tpl/images/0620/2788/0ae01.png)
⇒![x=\frac{3\times V_c_o_n_e}{\pi r^2 }](/tpl/images/0620/2788/48c07.png)
⇒![x=\frac{3\times 12\pi }{\pi (3)^2 }](/tpl/images/0620/2788/2c320.png)
⇒![x=\frac{36\pi }{9\pi }](/tpl/images/0620/2788/8941c.png)
⇒![x=\frac{36}{9}](/tpl/images/0620/2788/75d03.png)
⇒
meters.
The height of the cone "x" = 4 meters option A is the right choice.
Ответ:
sup remember me
Step-by-step explanation: