Understanding Arcs and Circle Properties

Front

What is the formula to find the area of a circle?

Back

Front

How do you find the radius of a circle if the diameter is given?

Back

Divide the diameter by 2.

Front

What is a central angle?

Back

A central angle is an angle whose vertex is at the center of the circle and whose sides are radii.

Front

What is an inscribed angle?

Back

An inscribed angle is formed by two chords in a circle which have a common endpoint.

Front

Define 'Circle'.

Back

The set of points equidistant from a given point (the center).

Front

Define 'Diameter'.

Back

A chord that passes through the center. (Diameter = 2 * radius)

Front

What is a chord in a circle?

Back

A line segment with both endpoints on the circle.

Front

What is a major arc?

Back

A major arc is an arc that is larger than a semicircle.

Front

What is a minor arc?

Back

A minor arc is an arc that is smaller than a semicircle.

Front

What is the relationship between the inscribed angle and the intercepted arc?

Back

The inscribed angle is half the measure of the intercepted arc.