If its 2d its called a semi-circle, if its 3d its called a semi-sphere.
Surface area is all the areas for a 3 figure. Area is for only on side of a 3d figure
An edge is an area of a 3D figure where two faces meet to form a line segment.
Sometimes because a sphere which is a 3d figure has a diameter
A 2D seven sided figure is called a heptagon. A 3D seven faced polygon is called a heptahedron.
If its 2d its called a semi-circle, if its 3d its called a semi-sphere.
The cone IS a 3d figure.
It depends on the type of figure. If it is a 2D figure, then it is called area. If it is a 3D figure, then it is called volume.
A solid.
Yes.
A 3D figure can be drawn on a flat plane (piece of paper) by using perspective.A horizon (horizontal) line is drawn across the page and a spot marked along the horizon. All side lines of the 3D shape must meet at the spot.Perspective is much used by artists and architects, etc.
A line (2D), ray (2D), vector (2D), line segment (2D), a mobius strip (3D), or a klein bottle (3D).
Volume if it's a 3D figure and area if it's a 2D figure
Surface area is all the areas for a 3 figure. Area is for only on side of a 3d figure
An edge is an area of a 3D figure where two faces meet to form a line segment.
A three-dimensional figure with 30 faces is called a triacontahedron.
Sometimes because a sphere which is a 3d figure has a diameter