circle vocabulary and inscribed angles

Front

inscribed angle: an angle with its vertex _____________ the circle

Back

on

Front

What is an arc with a measure greater than 180 degrees?

Back

Major arc

Front

Solve for x: If the inscribed angle is 25 degrees, what is the measure of the intercepted arc?

Back

50 degrees

Front

What is the measure of an inscribed angle that intercepts an arc of 80 degrees?

Back

40 degrees

Front

What is a line that intersects the circle in two places?

Back

Secant

Front

What is the term for an angle whose vertex is at the center of the circle?

Back

Central angle

Front

What is the measure of a semi-circle?

Back

180 degrees

Front

If two chords intersect inside a circle, what is the relationship between the angles formed?

Back

The angles are equal to half the sum of the measures of the arcs intercepted by the angles.

Front

What is the relationship between the inscribed angle and the arc it intercepts?

Back

The inscribed angle is half the measure of the intercepted arc.

Front

What do you call an arc that measures exactly 180 degrees?

Back

Semi-circle