The 2D equivalent of a sphere is a circle so it follows that the 2D equivalent of a hemisphere is a semicircle.
A 2D shape with forty sides is known as a tentracontagon.
Its called a HEPTAGON
Icosagon
its called a septagon
The 2D equivalent of a sphere is a circle so it follows that the 2D equivalent of a hemisphere is a semicircle.
A hemisphere is a three dimensional shape that is essentially the same as half of a sphere.
10 sided 2D shape is called a decagon 20 sided 2D shape is called a icosagon 30 sided 2D shape is a swimming pool 40 sided 2D shape is unknown 50 sided 2D shape is unknown 60 sided 2d shape is unknown 70 sided 2d shape is unknown 80 sided 2d shape is unknown 90 sided 2d shape is unknown 100 sided 2d shape is unknown 110 sided 2d shape is unknown 111 sided 2d shape is unknown 120 sided 2d shape is unknown 130 sided 2d shape is unknown
A 2d nine sided shape is called a nonagon.
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.
A 2D sphere is a circle.
A 2D shape with forty sides is known as a tentracontagon.
A 2D shape with 9 sides is called a Nonagon.
A hemisphere is a 3-d shape and so does not have a name as a 2-d shape. 2-d sections of a hemisphere can be circles, semicircles, or sections of circles, depending on the inclination of the intersecting plane.
A 2D 12 sided shape is called a DodecagonAnd it's called a Dodecahedron if it's 3D.
2D shape
Irregular