10.1-10.4 Flashcardizz Review

Front

What are the radii of a circle?

Back

The radii (plural of radius) are the line segments that connect the center of the circle to any point on the circle.

Front

What is the center of a circle?

Back

The center of a circle is the point that is equidistant from all points on the circle.

Front

What is a major arc in a circle?

Back

A major arc is an arc that is larger than a semicircle, typically named using three points, with the middle point being on the arc.

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, where the measure of the arc is equal to the measure of the central angle.

Front

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

Back

The measure of the arc is equal to the measure of the central angle in degrees.

Front

What is the formula for the circumference of a circle?

Back

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

Front

What is the formula for the area of a circle?

Back

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

Front

What is a semicircle?

Back

A semicircle is an arc that represents half of a circle, subtended by a diameter.

Front

How do you identify a minor arc?

Back

A minor arc is an arc that is smaller than a semicircle, typically named using two endpoints.

Front

What is the difference between a major arc and a minor arc?

Back

A major arc is larger than a semicircle, while a minor arc is smaller than a semicircle.