circle

• chord - a line segment joining two points on the circle.
• diameter - a chord that connects two points on a circle and passes through the center of the circle
• Radius - a line segment from the circle to any point on the circle
• central angle - an angle formed by two radii
• inscribed angle - an angle whose vertex is on the circle
• solid figures are the three-dimensional figures
• A three -dimensional object - has length,width,and height.they may also have faces edges and vertuces
• a face is the flat surface of a solid figure
• an adge is where two faces meet