▁with ▁base ▁length ▁l ▁and ▁height ▁h ▁has ▁surface ▁area ▁and ▁volume : ▁ ▁. ▁ ▁The ▁later al ▁edge ▁length ▁is : ▁, ▁and ▁the ▁sl ant ▁height ▁is : ▁. ▁ ▁The ▁di hed ral ▁angles ▁are : ▁between ▁the ▁base ▁and ▁a ▁side : ▁; ▁between ▁two ▁sides : ▁. ▁ ▁Equ il ater al ▁square ▁py ram id , ▁Johnson ▁solid ▁J 1 ▁ ▁If ▁all ▁the ▁edges ▁have ▁the ▁same ▁length , ▁then ▁the ▁sides ▁are ▁equ il ater al ▁tri angles , ▁and ▁the ▁py ram id ▁is ▁an ▁equ il ater al ▁square ▁py ram id , ▁Johnson ▁solid ▁J 1 . ▁ ▁The ▁Johnson ▁square ▁py ram id ▁can ▁be ▁character ized ▁by ▁a ▁single ▁edge - length ▁parameter ▁l . ▁ ▁The ▁height ▁h ▁( from ▁the ▁mid point ▁of ▁the ▁square ▁to ▁the ▁a pe x ), ▁the ▁surface ▁area ▁A ▁( including ▁all ▁five ▁faces ), ▁and ▁the ▁volume ▁V ▁of ▁such ▁a ▁py ram id ▁are : ▁ ▁Graph ▁ ▁A ▁square ▁py ram id ▁can ▁be ▁represented ▁by ▁the ▁W heel ▁graph ▁W 5 . ▁ ▁Rel ated ▁poly hed ra ▁and ▁h oney com bs ▁ ▁Square ▁py ram ids ▁fill ▁space ▁with ▁t etra hed ra , ▁trunc ated ▁cub es ▁or ▁cub oct ah ed ra . ▁ ▁D ual ▁poly hed ron ▁▁ ▁The ▁square ▁py ram id ▁is ▁top olog ically ▁a ▁self - du al ▁poly hed ron . ▁The ▁dual ▁edge ▁lengths ▁are