If you're talking about the brainly app then there are two options, the one to scan number problems (new) and the one for word problems with has the letter A on an icon, click on this if you have a word problem and the other one if you have equation
Since a side is only 6 inches long and the total perimeter is 36; take 36/6 and you get 6. The only figure with six sides is a hexagon, thus your answer is hexagon.