Joke Collection Website - Talk about mood - What percentage of the height is the distance from the vertex of a regular tetrahedron to the center of gravity? Tell me the general meaning.
What percentage of the height is the distance from the vertex of a regular tetrahedron to the center of gravity? Tell me the general meaning.
The volume of a regular tetrahedron (triangular pyramid) is one third of the bottom area times the height.
v0= 1/3*s0*h
The height above the center of gravity is x.
v 1 = 1/3s 1 * x s 1/s0=(x/h)^2
v 0 = 2v 1v 1/v 0 =( 1/3 * s 1 * x)/( 1/3 * s0 * h)
=s 1/s0*(x/h)=(x/h)^3
(x/h)^3= 1/2
x=( 1/2)^ 1/3≈0.7937
- Related articles
- Talk about your feelings on the last day of leaving your job.
- Excuse me; 0x00404936 instruction refers to 0x00ec 15 10 memory. Why can't this memory be read?
- Brief self-evaluation of male blind date
- Talk about the interpretation of life
- If you are bored, go shoot Tik Tok. Although you are not young, what song is it?
- What snacks are there?
- How to make gif mobile phone in qq space and how to make gif animation in QQ space
- How to write a beautiful copy of students playing ducks in closed period
- Tell me about my class teacher's composition.
- What are the poems that compare them well?