The 3 dimensional version of a circle is a sphere - a round ball. You can make it out of putty or papier mache.
The answer depends on their relative sizes and positions.
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.
No shape has the greatest area. You can make a circle the size of a fingernail, and a square the size of a house; you can make a trapezoid the size of a crumb, and a rectangle the size of a car. Since you can change the size of the shape, there is no true answer.
A circle; a line; or a shape composed of connected lines that do not make a single closed path. Sometimes people say a circle is in fact a polygon with an infinite number of sides. But a closed shape with an infinite number of sides would have to be made of sides with a length of zero; such "sides" are points and not lines. A circle does not therefore meet the definition of a polygon.
it is a net.
Get a 2D model, and add one dimension.
u make your working model of area of circle with your use of brain
of course you can, with a square you can and a circle
Circle and semi-circle?
A model?
The answer depends on their relative sizes and positions.
get clay and shape it to a dragster
circle triangle square diamondtrapezoid rectangle
To make you semi-circle in Adobe Illustrator, you need to use the scissors tool to cut a circle shape perfectly in half.
paper mache
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.
The planets do not circle the sun in any specific shape. Their orbits around the sun are more elliptical than circular, and each planet has its own unique elliptical orbit.