Week 14 Test

Front

What is a chord in a circle?

Back

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

Front

How do you find the measure of an arc in a circle?

Back

The measure of an arc can be found using the central angle that subtends the arc.

Front

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

Back

The inscribed angle is half the measure of the arc it subtends.

Front

What is the formula for the circumference of a circle?

Back

The circumference C of a circle is given by C = 2πr, where r is the radius.

Front

What is the equation of a circle in standard form?

Back

The standard form of the equation of a circle is (x-h)² + (y-k)² = r², where (h,k) is the center and r is the radius.

Front

How do you determine the radius of a circle from its equation?

Back

The radius can be determined from the equation (x-h)² + (y-k)² = r² by taking the square root of r².

Front

What is the measure of a central angle in relation to its intercepted arc?

Back

The measure of a central angle is equal to the measure of its intercepted arc.

Front

What is the relationship between the diameter and the radius of a circle?

Back

The diameter is twice the length of the radius.

Front

How do you calculate the area of a circle?

Back

The area A of a circle is given by A = πr², where r is the radius.

Front

What is an inscribed angle?

Back

An inscribed angle is an angle formed by two chords in a circle which share an endpoint.