Question

What is the greatest number of right angles a hexagon can have?

Answer 1

So hexagon is 6 sides and 6 angles
it can have a max of 2 right angles
if you make an irregular hexagon with one of the lines going into the figure then the answer is 4

if you have all the lines outside of the hexagon then the max is 2
 

a geoboard is a board with pegs that you can put rubber bands on to form  a figure.  google it