Circles Test Review

Front

What is a chord in a circle?

Back

A chord is a line segment with both endpoints on the circle. It is not necessarily a diameter.

Front

What is the definition of a diameter?

Back

A diameter is a chord that passes through the center of the circle, dividing it into two equal halves.

Tags

CCSS.HSG.C.A.2

Front

What is a radius?

Back

A radius is a line segment from the center of the circle to any point on the circle.

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.

Tags

CCSS.HSG.C.A.2

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.

Tags

CCSS.HSG.C.A.2

Front

What is an arc in a circle?

Back

An arc is a portion of the circumference of a circle.

Tags

CCSS.HSG.C.B.5

Front

What is a sector of a circle?

Back

A sector is a region enclosed by two radii and the arc between them.

Front

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

Back

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

Tags

CCSS.HSG.C.A.2

Front

What can be said about the opposite angles of a quadrilateral inscribed in a circle?

Back

The opposite angles of a quadrilateral inscribed in a circle are supplementary.

Tags

CCSS.HSG.C.A.2

Front

What is the measure of an inscribed angle in a semicircle?

Back

An inscribed angle in a semicircle is a right angle (90 degrees).

Tags

CCSS.HSG.C.A.2