Question

एक लंब वृत्तीय शंकु की ऊंचाई उसके आधार की त्रिज्या के बराबर है यदि इसका आयतन 72 सेंटीमीटर क्यूब हो तो शंकु की ऊंचाई ज्ञात कीजिए​

Answer 1

The black coating of copper oxide can be removed chemically by passing hydrogen gas over heated copper oxide. The black coating turns brown as oxygen is removed by hydrogen.

Answer 2

Answer:

ok it's of which subject I think it is maths but in Hindi if u translate in English then I will tell you

Step-by-step explanation:

Let radius of the cone is =r

and height is=h

in cm.<br> Then, we are given,<br>

r/h=3/4=h=4r/3=(1)

<br> Volume of a cone

=1/3pie r2h=301.44cmcube

=1/3pie r2(4r/3)=301.44

=4pie r3/9=301.44

=r3=301.44*9/4*3.14=216

r=6

<br> So, radius of the cone is 6