Module 1: Arcs, Sectors, and Chords

Front

What is a radius?

Back

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

Front

What is a diameter?

Back

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

Front

What is a chord?

Back

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

Front

What is a tangent line?

Back

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

Front

What is a secant?

Back

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

Front

How do you calculate the area of a circle?

Back

Front

What is the formula for the circumference of a circle?

Back

Front

What is the area of a sector?

Back

Front

How do you find the length of an arc?

Back

Front

What is the relationship between the radius and diameter?

Back