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Dimensi Tiga
Kubus
r = 12 cm
P tengah DH
O tengah AC
AC diwakili bidang ACP
OP sejajar BH
X pada BH
PX ⊥ BH
∆BPH
PH = 1/2 r = 6 cm
BH = r√3 = 12√3 cm
DB = r√2 = 12√2 cm
Jarak AC dan BH
= jarak OP dan BH
= PX
= HP × DB / HB
= 6 × 12√2 / 12√3
= 2√6 cm