Unit Eight Review - Circles

m∠DAF = _____^o

• 90

• 140

• 130

• 50

If m∠1 = (3x + 2)^o and m∠2 = (5x)^o , then x = _____.

• 11

• 1

• 22.25

• 90

x = _____^o

• 46

• 30

• 76

• 38

x = _____^o

• 72.5

• 127.5

• 90

• `145

x = _____

• 4

• 3.75

• 6.5

• 3.25

x = _____

• 9

• 12

• 36

• 4

x = _____

• 77

• 26

• 154

• 90

Find the center and the radius of a circle whose equation is (x + 9)² + (y - 5)² = 64.

• Center (9, -5)

  Radius 8

• Center (9, -5)

  Radius 64

• Center (-9, 5)

  Radius 64

• Center (-9, 5)

  Radius 8

x = _____

• 8

• 7

• 31

The perimeter of the quadrilateral is _____.

• 63.5

• 84.6

• 85.9

• 127