Tinye ka ọkacha mmasị
Wepụ si ọkacha mmasị
Ebe a parallelogram, parallelogram ebe usoro ihe mgbako
Ebe a parallelogram, parallelogram ebe usoro ihe mgbako-enye gị ohere ịhụ ebe a parallelogram, site formulas, iji ogologo parallelogram n'akụkụ, elu, diagonals na n'akuku n'etiti ha.