Circles

Front

What is the measure of arc NL if it is given as 84°?

Back

Arc NL measures 84°.

Front

What is a secant line in relation to a circle?

Back

A secant line is a line that intersects a circle at two points.

Front

What is a major arc?

Back

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

Front

What is a tangent line?

Back

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

Front

What is a chord in a circle?

Back

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

Front

How do you calculate the circumference of a circle?

Back

Circumference = 2πr, where r is the radius.

Front

What is the relationship between the inscribed angle and the arc it intercepts?

Back

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

Front

What is the difference between a minor arc and a major arc?

Back

A minor arc is smaller than a semicircle, while a major arc is larger.

Front

What is the formula for the area of a circle?

Back

Area = πr², where r is the radius.

Front

What is the definition of a diameter?

Back

A diameter is a chord that passes through the center of the circle.