Circles Review

Front

What is a Major Arc?

Back

An arc whose measure is between 180° and 360°.

Front

What is the length of the bold arc if it measures 11 km?

Back

11 km

Front

What is a Minor Arc?

Back

An arc whose measure is less than 180°.

Front

If a cathedral window has three stained glass sections of equal size, what is the area of each section if the total area is 9 sq. ft?

Back

3 sq. ft

Front

What is the area of a shaded sector if it measures 5.3π?

Back

5.3π

Front

What is a Semicircle?

Back

An arc that measures exactly 180°.

Front

What is an Inscribed Angle?

Back

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

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.

Front

What is the formula for the area of a circle?

Back

A = πr², where r is the radius.

Front

What is a Central Angle?

Back

An angle whose vertex is at the center of the circle.