Unit 8 Review

Front

What is the term for the angle formed at the center of a circle by two radii?

Back

Central Angle

Front

What is the measure of angle A if m∠A = 20?

Back

20 degrees

Front

Identify a minor arc in a circle.

Back

AB

Front

In the equation (x-4)² + (x-3)² = 25, what does the number 5 represent?

Back

The radius of the circle.

Front

What is the measure of arc JH if it is given as 130?

Back

130 degrees.

Front

What is the distance from the center of a circle to any point on its circumference called?

Back

Radius

Front

What do you call an angle whose vertex is on the circle and whose sides contain chords of the circle?

Back

Inscribed Angle

Front

What is the term for the longest arc connecting two points on a circle?

Back

Major Arc

Front

If the radius of a circle is 5, what is the diameter?

Back

10 (Diameter = 2 * Radius).

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.