Parts of a Circle Review

Front

What is a diameter in a circle?

Back

A diameter is a straight line segment that passes through the center of the circle and connects two points on the circle's circumference.

Front

Is a diameter also considered a chord?

Back

True, a diameter is a special type of chord that passes through the center of the circle.

Front

What is the definition of a radius?

Back

A radius is the distance from the center of the circle to any point on the circle.

Front

How is the diameter related to the radius?

Back

The diameter is twice the length of the radius.

Front

What is an arc in a circle?

Back

An arc is a portion of the circumference of a circle, defined by two endpoints on the circle.

Front

What is the relationship between a chord and an arc?

Back

A chord connects two points on the circle, and the arc is the curved line between those two points.

Front

What is the circumference of a circle?

Back

The circumference is the total distance around the circle, calculated as C = πd, where d is the diameter.

Front

What is the formula for the area of a circle?

Back

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

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's circumference.

Front

What is a chord in a circle?

Back

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