Circle. That is the opposite of semi circle.
Of the Artic Circle.
A circle
circle
The opposite angles of a quadrilateral inscribed in a circle have a sum of 180 degrees.
Similar, in opposite hemispheres.
Opposite hemispheres.
The diameter of a circle is the longest straight line in a circle which is connected by two opposite points on the circle
no, they are opposite because a triangle has three sides and a circle is one big circle
ellipse
ellipse
The perimeter.