(drawn with base edge length 1 and height 2)

vertex count | 4 edge count | 6 face count | 4

slant height | sqrt(h^2 + s^2/12)≈sqrt(h^2 + 0.0833333 s^2) volume | (h s^2)/(4 sqrt(3))≈0.144338 h s^2 lateral surface area | 3/2 s sqrt(h^2 + s^2/12)≈1.5 s sqrt(h^2 + 0.0833333 s^2) base area | (sqrt(3) s^2)/4≈0.433013 s^2 surface area | 1/4 sqrt(3) s (sqrt(12 h^2 + s^2) + s)≈0.433013 s (sqrt(12 h^2 + s^2) + s) (assuming base edge length s and height h)

tetrahedral graph