basin
synclines
A folded napkin is often folded into a right triangle. The corners of walls can be shaped like a right angle.
a pentagon with two adjacent right angles
which state is shaped like a glove
A vase is the shaped like a trapezoid
a Dome
syncline
syncline
The fold mountain looks like a triangular shaped mountain.
No the dust bowl was not shaped like a bowl
synclines
No the dust bowl was not shaped like a bowl.
folded mountain
In Geology this would be called an anticline.
a huge bowl
ball shaped like a bowl
Black, bowl-shaped and waving.