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
an anticline. It is a type of fold in rock layers where the oldest rocks are in the center and the youngest rocks are on the outside. This type of fold is created by compression forces in the Earth's crust.
syncline
syncline
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.
The structure you are referring to is the falx cerebelli. It is a tent-like fold of the dura mater that lies between the cerebellar hemispheres and helps to stabilize and protect the brain.