Circle Vocab

Front

What is a line that touches a circle in just one point?

Back

Tangent

Front

What is the name for the distance around a circle?

Back

Circumference

Front

What do you call a segment that connects two points on a circle?

Back

Chord

Front

How many chords can be drawn in a circle?

Back

Infinite (but in the context of the question, 3 is given as an example).

Front

What is the distance from the center of a circle to any point on the circle called?

Back

Radius

Front

What is the longest chord in a circle?

Back

Diameter

Front

What is the formula to calculate the circumference of a circle?

Back

C = 2πr (where r is the radius).

Front

What do you call a line that intersects a circle at two points?

Back

Secant

Front

If a circle has a radius of 5 cm, what is its diameter?

Back

10 cm (Diameter = 2 * Radius).

Front

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

Back

Diameter is twice the radius.