Parts of Circle Practice

Front

What is a chord in a circle?

Back

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

Front

What is the distance around a circle called?

Back

Circumference.

Front

What is the definition of a secant?

Back

A secant is a line that intersects a circle at two points.

Front

What is the radius of a circle?

Back

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

Front

What is a diameter?

Back

The diameter is a chord that passes through the center of the circle and is twice the length of the radius.

Front

How is the circumference of a circle calculated?

Back

Circumference = 2πr, where r is the radius.

Front

What is the relationship between a chord and a secant?

Back

A chord is a line segment within the circle, while a secant is a line that extends outside the circle.

Front

What is the formula for the area of a circle?

Back

Area = πr², where r is the radius.

Front

What is the difference between a tangent and a secant?

Back

A tangent touches the circle at exactly one point, while a secant intersects the circle at two points.

Front

What is the central angle of a circle?

Back

A central angle is an angle whose vertex is at the center of the circle and whose sides intersect the circle.