Circles Review

Front

What is the definition of a circle?

Back

A circle is a set of points in a plane that are equidistant from a fixed point called the center.

Front

What is the formula for the circumference of a circle?

Back

The circumference C of a circle is given by the formula C = 2πr, where r is the radius.

Tags

CCSS.7.G.B.4

Front

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

Back

The diameter d of a circle is twice the radius r, so d = 2r.

Front

What is a chord in a circle?

Back

A chord is a line segment whose endpoints lie on the circle.

Front

What is a tangent to a circle?

Back

A tangent is a line that touches the circle at exactly one point.

Front

What is the measure of a central angle in a circle?

Back

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

Tags

CCSS.HSG.C.A.2

Front

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

Back

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

Tags

CCSS.HSG.C.A.2

Front

What is the formula for the area of a circle?

Back

The area A of a circle is given by the formula A = πr^2, where r is the radius.

Tags

CCSS.7.G.B.4

Front

What is a minor arc in a circle?

Back

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

Tags

CCSS.HSG.C.B.5

Front

What is a major arc in a circle?

Back

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

Tags

CCSS.HSG.C.B.5