Circle Review Part 1 (7.1-7.4)

Front

What is the segment that passes through the center of a circle and has its endpoints on the circle called?

Back

Diameter

Front

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

Back

The diameter is twice the length of the radius.

Front

If the radius of a circle is 12 in, what is the diameter?

Back

24 in

Front

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

Back

Radius

Front

What is the term for a line that touches a circle at exactly one point?

Back

Tangent Line

Front

What is the term for a line that intersects a circle at two points?

Back

Secant

Front

What is the total distance around a circle called?

Back

Circumference

Front

What is the formula for the circumference of a circle?

Back

Front

What is a central angle in a circle?

Back

An angle whose vertex is at the center of the circle and whose sides are radii.

Front

If the circumference of a circle is 31.4 in, what is the radius?

Back