Review Circles Vocabulary and Tangents

What is the radius?

• 18

• 72

• 38

• 14

QS is a tangent to circle P.  Find QS.

• 144

• 14

• 12

• 13

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4

• 2

• 3

• 16

In the equation (x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)

• (-3, -2)

• (-2, -3)

• (2, 3)

Diagram shows a tangent to a circle.

• True

• False

How many degrees are in a cirlce?

• 90

• 180

• 270

• 360

What is the measure of ∠PTQ?

• 100°

• 140°

• 180°

• 120°

Find x. Assume that segments that appear to be tangent are tangent.

• 11.2

• 18.0

• 25.0

• 30.0

What type of arc is arc AEB?

• Major

• Minor

• Semi-circle

• Noah's

Solve for the missing side.

• 6.3

• 10.4

• 7.2

• 8.9