...： In ΔABC as shown, C is a point on BD such that AC is an altitude of ΔABD. ...
... ΔACD, AC = AD. B and E are points on AC and AD respectively such that BE//CD. It...
...the length of the remaining side." (Intuitive proof: First point the 3 vertices, named A, B, C. If you...
...99041053cb5f4e7e9ddecff1f8ab07d6_A.png Let h be the perpendicular distance from the point A to the plane BDC. Consider the base △BDC, the volume...
Ref. gravity formula: If Mass same, New r is 1/3R. new g will be 1/(1/3R)^2 more or about x9 times more than original planet.
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