Parts of a Circle and Central and Inscribed Angles #2

Front

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

Back

Radius

Front

What is the longest distance across a circle that passes through the center?

Back

Diameter

Front

What is the total distance around a circle called?

Back

Circumference

Front

What is the angle formed at the center of a circle by two radii?

Back

Central Angle

Front

What is the angle formed by two chords in a circle that share an endpoint?

Back

Inscribed Angle

Front

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

Back

10 cm

Front

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

Back

6 cm

Front

What is the relationship between a central angle and an inscribed angle that subtend the same arc?

Back

The inscribed angle is half the measure of the central angle.

Front

What is a chord in a circle?

Back

A line segment whose endpoints lie on the circle.

Front

What is a secant line?

Back

A line that intersects a circle at two points.