What is the length, from its northwestern to its southeastern end, of the country represented by Liza Helder in the 2012 Miss Universe pageant? 
Liza Helder: Liza Helder; (born 1989) is an Aruban model and beauty pageant titleholder who was crowned Miss Aruba 2012 and was represented her Aruba in the 2012 Miss Universe pageant. Aruba:  It measures 32 km long from its northwestern to its southeastern end and 10 km across at its widest point.
32 km