Tangent Secant Chord

Solve for x.

• 10
• 85
• 170
• 180

• 240
• 230
• 205
• 255

Write the standard equation of the circle with the given center and radius; center (0,0) and radius: 3

• x²+y²=3
• x²+y²=6
• x²+y²=9

The diameter of a circle has length 12. The center is at (-5, 2). Give the equation of the circle.

• (x - 2)² + (y + 5)² = 36
• (x - 5)² + (y + 2)² = 6
• (x + 5)² + (y - 2)² = 36
• (x + 2)² + (y - 5)² = 6

In the diagram, central angle AOC measures 80 degrees. What is the number of degrees in the measure of inscribed angle ABC?

• 80

• 20

• 160

• 40

In the diagram, AB, BC and AC are tangents to circle O at points F, E, and D, respectively, AF = 6, CD = 5, and BE = 4.

What is the perimeter of  $\Delta ABC$ ? 

• 15

• 25

• 60

• 30

• 240
• 230
• 205
• 255

Find the measure of the missing angle.

• 65º

• 115º

• 360º

• 180º

Determine the m∠VXW.

• A
• B
• C
• D

A tangent to a circle touches the circle at only two points.

• True

• False