Chapter 11 Test Review

Which of the following answer choices below contains the equation of circle that has a

center of ( -4 , 6 ) & a radius of 9 units?

• ( x - 4 )² + ( y - 6 )² = 9

• ( x + 4 ) - ( y - 6 ) = 81

• ( x + 4 )² + ( y - 6 )² = 81

• ( x - 4 )² - ( y + 6 )² =81

• 20.93 miles

• 51.81 miles

• 31.4 miles

• 42.15 miles

Select the TWO correct statements about the formula of this circle:

x² + y² = 36

• The center of the circle is the origin.

• The radius is 36 units.

• The center of the circle is ( 6 , 6 )

• The radius of the circle is 6 units.

• 215.5 yd²

• 235.5 yd²

• 94.2 yd²

• 706.5 yd²

Which of the following answer choices contains the correct center and radius for this circle:

( x + 5 )² + ( y - 2 )² = 144

• Center: ( -5 , 2 )

  Radius: 144

• Center: ( -5 , -2 )

  Radius: 144

• Center: ( 5 , -2 )

  Radius: 12

• Center: ( -5 , 2 )

  Radius: 12

Solve for x. Assume that the lines that appear to be tangent are tangent.

• x = 3

• x = 4

• x = 6

• x = 8

Solve for x. Assume that the lines that appear to be tangent are tangent.

• 95

• 105

• 100

• 120

What is the perimeter of the polygon? Assume that the lines that appear to be tangent are tangent.

• 39 cm

• 54 cm

• 68 cm

• 78 cm

Solve for x. Assume that the lines that appear to be tangent are tangent.

• 3.5

• 5.5

• 6.8

• 10.3

What is the measure of minor arc TQ ?

• 86 degrees

• 92 degrees

• 94 degrees

• 104 degrees