Circles, Arcs, and Angles #1 (checked)

Front

What is the definition of a radius in a circle?

Back

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

Front

How do you classify an arc that is greater than a semicircle?

Back

It is classified as a major arc.

Front

What is the measure of a full circle in degrees?

Back

360 degrees.

Front

If the measure of arc JH is 130 degrees, what does this represent?

Back

It represents the angle subtended by the arc at the center of the circle.

Front

What is the relationship between a diameter and a radius?

Back

The diameter is twice the length of the radius.

Front

What is the definition of a minor arc?

Back

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

Front

How do you calculate the measure of an arc in a circle?

Back

The measure of an arc can be calculated using the central angle that subtends the arc.

Front

What is the formula for the circumference of a circle?

Back

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

Front

What is the difference between a chord and a diameter?

Back

A chord is a line segment whose endpoints lie on the circle, while a diameter is a chord that passes through the center of the circle.

Front

What is the definition of a semicircle?

Back

A semicircle is an arc that represents half of a circle.