An inscribed circle.
It is. All sides of a geometric pyramid are flat - even stepped pyramids.
If a mineral belongs to the hexagonal crystal group, then its crystals have six sides.
Heptagon
They are called sides.
a solid with flat sides meet at sharp edges and corners is called crystal structure
Faces
The number of sides a crystal has depends what minerals or elements make up the crystal. A cubic crystal has 6 sides. A hexagonal crystal with flat ends has 8. A hexagonal crystal with pointed ends has 18.
The surface of a crystal is called a flat face or a facet.
your temples
It is called a side vent.
it is a crystal. a crystal has actually more than one flat surface. I dont really know how to explain andled sides but it kid of makes it look like an ice cream cone with a point at both the top and the bottom. the "cone" is actually several flat surfaces making it look roundish.
plateau
They are polygons and they have 3 or more sides
Butte
A plane (flat) shape with three sides is called a "triangle".Notice that if it has three sides, then it must have three angles.
Cumulus Clouds do.