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Advancement Ch. 3

Advancement Challenge #3 Crossword Puzzle

circle a closed plane curve consisting of all points at a given distance from a point within it called the center.
center the middle point, as the point within a circle or sphere equally distant from all points of the circumference or surface, or the point within a regular polygon equally distant from the vertices
radius a straight line extending from the center of a circle or sphere to the circumference or surface
diameter a straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end
chord the line segment between two points on a given curve
secant an intersecting line, especially one intersecting a curve at two or more points
tangent touching at a single point, as a tangent in relation to a curve or surface that is in contact along a single line or element, as a plane with a cylinder.
concentric having a common center, as circles or spheres.
central angle an angle formed at the center of a circle by two radii
inscribed angle angle whose vertex is on a circle and whose sides contain chords of the circle
minor arc less than 90 degrees
major arc more than 90 degrees
semicircle anything having or arranged in the form of a half of a circle.
intercepted arc arc that lies in the interior of an inscribed angle and has endpoints on the angle
inscribed to draw or delineate (one figure) within another figure so that the inner lies entirely within the boundary of the outer, touching it at as many points as possible
circumscribed to draw a figure around another figure so as to touch as many points as possible
equidistant equally distant
apothem a perpendicular from the center of a regular polygon to one of its sides
circumference the outer boundary, especially of a circular area and perimeter
arc length portion of the circumference of the circle
area any particular extent of space or surface; part
sector a plane figure bounded by two radii and the included arc of a circle
Created by: akdodd