Unit 4A Flashcard 1 (Activity 24-1/24-2)

Front

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

Back

The length of the diameter is double the length of the radius.

Front

What does cutting a circular pie in half represent in relation to the circle?

Back

A diameter.

Front

What is the relationship between a tangent line and a radius drawn to the point of tangency?

Back

They are perpendicular.

Front

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

Back

The length of a radius is half the length of the diameter.

Front

Can the radii of the same circle have different lengths?

Back

No, all radii of the same circle are equal.

Front

Define a diameter in the context of a circle.

Back

A diameter is a line segment that passes through the center of the circle and has its endpoints on the circle.

Front

What is a radius in a circle?

Back

A radius is a line segment from the center of the circle to any point on the circle.

Front

What is a chord in a circle?

Back

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

Front

What is a tangent line in relation to a circle?

Back

A tangent line is a line that touches the circle at exactly one point.

Front

What is the relationship between two radii of the same circle?

Back

They are congruent (equal in length).