'''because the people could see more'''
They were shaped as a semi-circle so they could amplify sound.
semi-circle
No it is a irregular shape
A 3D semi circle
it is like a semi-circle, dome like shape.
A semi-circle is a two dimensional shape.
Yes.
a two sised shape is a semi-cirvle
Greek theatres were typically semi-circular in shape, with tiered seating arranged around a central performance area known as the orchestra. This design allowed for optimal acoustics and visibility, ensuring that audiences could hear and see the performances clearly from various distances. The semi-circular layout also fostered a communal atmosphere, enhancing the shared experience of theatrical events in ancient Greece.
`ημί- = hemi- e.g. hemisphereakin to Latin semi- (both of ProtoIndoEuropean origin *semi-)
Half a sphere, which is a 3D shape, is called a hemisphere. The semi-circles in the question is a 2D shape and will make a circle.
If you are in a airplane rainbows are actually a circle shape,but from our view it is semi-circle.