Screenshot on Nextbook Ares 11?

Can anybody help me? I just got a Nextbook Ares 11 and I cannot figure out how to take a screenshot. Power and volume down or menu doesn't work? Does it even have ability for screenshots??? If anyone could help me, I would appreciate it so much! You can contact me via email at kaila_n9@yahoo.com Thanks :)

<3 Kaila Reinhardt