Protruded
Ohio
north dakota
No flag of the fifty states is round. Ohio's flag is shaped like a pennant, and several flags have a round shield in the center of the field, but none of them are "round flags".
the state that was shaped by a valcano was hawaii.
The state that has a year-round temperature between 50 degrees and 90 degrees is Hawaii. In fact, the temperature rarely dips below 70 degrees.
Utah is shaped that way
Colorado is a perfect rectangle.
which state is shaped like a glove
None, but we have a couple square-shaped.
No state in the US has all of their manhole covers shaped like Oreos.
Pretty much a rectangle
Nepal's flag is shaped like a triangle fixed on top of another triangle. See Sources and related links for a picture.A square is a type of a rectangle. Hence, the square-shaped flag of Vatican City State and Switzerland are types of a rectangular flags.