Circles (12/02/24)

Front

What is a central angle in a circle?

Back

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

Front

Calculate the length of an arc with a radius of 10 ft and a central angle of 90 degrees.

Back

Front

What is the definition of a minor arc?

Back

A minor arc is an arc that is smaller than a semicircle, measuring less than 180 degrees.

Front

What is the formula for the diameter of a circle?

Back

Diameter = 2 × Radius.

Front

Find the measure of arc AB if the central angle is 120 degrees.

Back

Measure of arc AB = 120 degrees.

Front

What is the relationship between a tangent and a radius at the point of tangency?

Back

A tangent to a circle is perpendicular to the radius at the point of tangency.

Front

What is a major arc?

Back

A major arc is an arc that is larger than a semicircle, measuring more than 180 degrees.

Front

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

Back

Front

What is an inscribed angle?

Back

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

Front

Calculate the area of a circle with a radius of 7 cm.

Back