What is the length of side HIDDENSIDENAME ?
ANSWER
HIDDENSIDENAME and all other sides of the same orientation add up to the length of the face opposite it.
HIDDENSIDENAME + SAMESIDES.map(function(item){return item.length}).join('+') = OPPOSITESIDES[0].length
What number does HIDDENSIDENAME have to be equal to for this sum to be correct?
\textbf{ANSWER} + SAMESIDES.map(function(item){return item.length}).join('+') = OPPOSITESIDES.map(function(item){return item.length}).join('+')
HIDDENSIDENAME = ANSWER
HIDDENSIDENAME + SAMESIDES.map(function(item){return item.length}).join('+') is the sum of all the sides opposite.
HIDDENSIDENAME +
SAMESIDES.map(function(item){return item.length}).join('+') =
OPPOSITESIDES.map(function(item){return item.length}).join('+')
What number does HIDDENSIDENAME have to be equal to for this sum to be correct?
\textbf{ANSWER} + SAMESIDES.map(function(item){return item.length}).join('+') = OPPOSITESIDES.map(function(item){return item.length}).join('+')
HIDDENSIDENAME = ANSWER