tolong di bantu no.5 pakai cara ya pointnya besar lho! terimaksih :)

Jarak E ke BDG = 2/3 x diagonal ruang (lebih jauh)
Jarak C ke BDG = 1/3 x diagonal ruang (lebih dekat)

Rusuk = 6√3 => diagonal ruang EC = r√3 = 6√3.√3 = 18
Jarak E ke BDG = 2/3 x EC = 2/3 x 18 = 12 cm

Dmensi Tiga Kubus
S = 6√3
diagonal ruang = s√3 = (6√3)(√3)= 18

Jarak E k ebidang BDG = 2/3 EC  = 2/3 (18) = 12 cm