math vocab 10
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/21
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
22 Terms
Arc
a part of the circumference of a circle
Circle
the set of points equidistant from a center point
Arc Length
the unit length of an arc
Arc Measure
the degree measure of an arc
Central Angle
an angle formed by two radii with the vertex at the center of the circle
Minor Arc
an arc smaller than 180 degrees
Major Arc
an arc larger than 180 degrees
Circumference
the perimeter of a circle
Area of a Circle Formula
πr²
Circumference Formula
2πr
Sector of a Circle
the region bounded by two radii and the intercepted arc
Segment of a Circle
the part of a circle bounded by an arc and the chord joining its endpoints
Radius
the segment that connects the center of a circle to any point on the circle
Diameter
the segment that connects two points on a circle and passes through the center
Tangent to a Circle
a line, ray, or segment that intersects a circle exactly one time
Point of Tangency
the point where the tangent line and the radius intersect
Perpendicular
a tangent line is always perpendicular to the radius
Chord
a segment whose endpoints are on a circle
Inscribed Angle
an angle inside a circle with a vertex on the circle
Intercepted Arc
the arc that an angle opens up to
Arc Length Formula
(arc measure ÷ 360) × 2πr
Area of a Sector Formula
(arc measure ÷ 360) × πr²