Function to calculate the the number of Triangles possible
function calculateTriangles ( sides ) { let count = Math . pow ( sides [ 0 ] + sides [ 1 ] + sides [ 2 ] , 2 ) ; count -= Math . pow ( sides [ 0 ] , 2 ) ; count -= Math . pow ( sides [ 2 ] , 2 ) ; count -= Math . pow ( sides [ 4 ] , 2 ) ; return ( count ) ; }