Central & Inscribed Angles

Front

What is the measure of arc JH if the answer is 130?

Back

Arc JH measures 130 degrees.

Front

Inscribed angle: an angle with its vertex _____________ the circle.

Back

on

Front

Solve for x if the answer is 20.

Back

x = 20.

Front

How many degrees are in a circle?

Back

360 degrees.

Front

Which number best represents a radius?

Back

6.

Front

What is a central angle?

Back

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

Front

What is the relationship between a central angle and its intercepted arc?

Back

The measure of the central angle is equal to the measure of its intercepted arc.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.

Front

What is the measure of an inscribed angle compared to its intercepted arc?

Back

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

Front

If an inscribed angle intercepts an arc of 80 degrees, what is the measure of the inscribed angle?

Back

40 degrees.