Circle Properties Review

Front

What is the formula for the area of a circle?

Back

Front

What is the formula for the circumference of a circle?

Back

Front

What is a sector of a circle?

Back

A sector is a portion of a circle enclosed by two radii and the arc between them.

Front

How do you calculate the area of a sector?

Back

Front

What is the relationship between the angles in a circle?

Back

The sum of the angles around a point is 360 degrees.

Front

What is the inscribed angle theorem?

Back

The inscribed angle theorem states that an angle inscribed in a circle is half the measure of the intercepted arc.

Front

What is the central angle of a circle?

Back

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

Front

How do you find the measure of an angle formed by two chords?

Back

The measure of an angle formed by two chords is equal to half the sum of the measures of the arcs intercepted by the angle and its vertical angle.

Front

What is the formula for the area of a triangle inscribed in a circle?

Back

Front

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

Back