Vocab 26-30, Inv 3

Central Angle

angle whose vertex is the center of the circle

Semicircle

An arc of a circle whose endpoints lie on a diameter

Center of a Regular Polygon

The point that is equidistant from all vertices of the regular polygon.

Major Arc

An arc of a circle whose measure is greater than 180 degrees.

Pythagorean Triple

Set of 3 nonzero whole numbers a, b, and c that satisfy the Pythagorean Theorem

Included Angle

the angle formed by two adjacent sides of a polygon

Included Side

the common side of two consecutive angles of a polygon

Arc

an unbroken part of a circle consisting of two points called the endpoints and all the points on the circle between them

Minor Arc

An arc of a circle whose measure is less than 180 degrees.

Central Angle of a Regular Polygon

An angle whose vertex is the center of the regular polygon and whose sides pass through consecutive vertices.

Measure of a Minor Arc

the measure of its central angle

Measure of a Major Arc

Difference between 360 and the measure of its associated minor arc

Radical Expression

an expression that indicates a root of a quantity

Adjacent Arcs

two arcs of the same circle that intersect at exactly one point