Unit 8 retest

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 HKI if it is given as 73 degrees?

Back

73 degrees

Front

What is the measure of angle A if it is given as 20 degrees?

Back

20 degrees

Front

What do you call the shortest arc connecting two points on a circle?

Back

Minor Arc

Front

If x + 10 = 42, what is the value of x?

Back

x = 32

Front

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

Back

Major Arc

Front

What is the relationship between the inscribed angle and the central angle that subtends the same arc?

Back

The inscribed angle is half the measure of the central angle.

Front

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

Back

10 cm

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.

Front

What is the formula for the area of a circle?

Back

A = πr², where r is the radius.