Circle Vocabulary

Question	Answer
Chord	a line segment with each endpoint on the circle
Diameter	a chord that passes through the center of the circle
Secant of a Circle	a line that intersects a circle at exactly two points
Tangent of a Circle	a line that intersects a circle at exactly one point
Point of Tangency	point of intersection where a line intersects a circle at exactly one point
Radius	the distance from a point on the circle to the center of the circle
Image: center_of_the_circle (image/png)	center of the circle
Image: chord (image/png)	chord
Image: diameter (image/png)	diameter
Image: point_of_tangency (image/png)	point of tangency
Image: secant (image/png)	secant
Image: tangent (image/png)	tangent
Image: radius (image/png)	radius
Central Angle	an angle whose vertex is the center of the circle
Inscribed Angle	an angle whose vertex is on the circle
Arc	any unbroken part of the circumference of a circle (named using two endpoints)
Major Arc	the largest arc formed by a secant and a circle (more than half way around the circle)
Minor Arc	the smallest arc formed by a secant and a circle (less than halfway around the circle)
Semicircle	exactly half of a circle
Image: central_angle (image/png)	central angle
Image: inscribed_angle (image/png)	inscribed angle

Resource summary

	Created by Ms. Coney about 10 years ago