Chapter 10 Review

Front

What is the value of x if x = 160, x = 40, x = 80, x = 360?

Back

x = 80

Front

Segments with endpoints on a circle are called _____

Back

chords

Front

An angle is a(n) ______ if the vertex is on a circle and the sides of the angle are chords of the circle.

Back

inscribed angle

Front

Find the measure of minor arc AV if the options are 55°, 115°, 85°, 95°

Back

55°

Front

What is the equation of the circle? (x+1)² + (y +1)² = 3, (x+1)² + (y -1)² = 3, (x+1)² + (y +1)² = 9, (x-1)² + (y -1)² = 9

Back

(x+1)² + (y +1)² = 9

Front

Define a chord in a circle.

Back

A chord is a line segment with both endpoints on the circle.

Front

What is the definition of an inscribed angle?

Back

An inscribed angle is formed by two chords in a circle which have a common endpoint.

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 is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.

Front

What is the formula for the area of a circle?

Back

A = πr², where r is the radius.