a closed, flat figure is a polygon. But it is only a polygon when it is not round.
a pentagon is a 2 dimensional figure. It does not have a base.
A geometric figure with a polygonal base and triangular sides is called a pyramid.
This figure is a CONE.
100 is already rounded to one significant figure.
A cone has a round base and a narrowing round top. I hope this answers your question!
Cones, hemispheres, and cylinders have.
Because the base of a cone is round, it is the only three dimensional figure with only one vertex.
A round cake is a circular figure.
solid figure that has the shape of a round ball
A sphere. In Geometry, it is a round solid figure. Every point on it's surface is an equal distant from it's center.
The base is the bottom of the figure and the height is how tall the figure is.
It is a circle or a sphere
a cube
Sphere
Round 12 to 1 significant figure is 10.
The distance round a closed figure is the perimeter.