L = ½ . d . ½d√3
L = ¼ d2√3
Mencari S:
S = ½ (d + d + d)
S = ½ . 3d
S = 3/2d
Mencari r:
r = L/S
r = (¼ d2√3)/ 3/2d
L = ½ . d . ½d√3
L = ¼ d2√3
Mencari S:
S = ½ (d + d + d)
S = ½ . 3d
S = 3/2d
Mencari r:
r = L/S
r = (¼ d2√3)/ 3/2d
Editor: Rian Ade Maulana
Sumber: buku.kemdikbud.go.id