Free Printable Practice for Ch. 9 Test

1.

What is the measure of angle 2?

a)

80

b)

45

c)

125

d)

40

2.

What is the m∠C?

a)

50

b)

25

c)

100

d)

55

3.

What is the measure of angle HKI?

a)

72

b)

73

c)

74

d)

75

4.

A tangent is a line that _______.

a)

passes through the center of the circle

b)

intersects the circle at two points

c)

intersects the circle at one point

d)

follows the circumference of a circle

5.

a)

81

b)

22

c)

51.5

d)

73.5

6.

What is the part of the circle highlighted in red called?

a)

semi-circle arc

b)

major arc

c)

minor arc

d)

sector

7.

What is the part of the circle highlighted in red called?

a)

semi-circle arc

b)

major arc

c)

minor arc

d)

sector

8.

What is the value of x?

a)

x = 160

b)

x = 40

c)

x = 80

d)

x = 360

9.

If the measure of arc ABC = 210°, what is the measure of ∠AOC?

a)

150°

b)

100°

c)

210°

d)

105°

10.

Write the equation of a circle with a center at (-4, 6) and diameter of 10.

a)

(x-4)²+ (y+6)² = 100

b)

(x+4)²+ (y-6)² = 25

c)

(x+4)²+ (y-6)² = 100

d)

(x-4)²+ (y+6)² = 25

11.

Find the measure of Angle B.

a)

80˚

b)

90˚

c)

30˚

d)

180˚

12.

Find the measure of Angle R.

a)

50˚

b)

100˚

c)

60˚

d)

120˚

13.

Find the value of x.

a)

9

b)

64

c)

225

d)

15

14.

Find the circumference of the circle in the image.

a)

10π

b)

20π

c)

100π

d)

20

15.

A circle has an area of 36π. What is the circumference of the circle?

a)

18π

b)

12π

c)

6π

d)

36π

16.

solve for x.

hint* central angle = arc measure. diameter makes a semicircle = 180 degrees

a)

21.25

b)

13.6

c)

43.75

d)

10

17.

Solve for a.

a)

6

b)

6.67

c)

8.33

d)

10

18.

How big is angle b?

a)

50 degrees

b)

60 degrees

c)

70 degrees

d)

75 degrees

19.

What part of the circle is present?

a)

Tangent

b)

Secant

c)

Chord

d)

Diameter

20.

Determine the measure of ∠NOP

a)

15°

b)

20°

c)

40°

d)

50°

21.

Write the equation of this circle in standard form. Then sketch it labeling the center and endpoints of the horizontal and vertical diameters using exact coordinates. $-6y\ +x^2\ +y^2\ +18x-10=100$

a)

$x^2+y^2=10$

b)

$\left(x+9\right)^2+\left(y-3\right)^2\ =\ 2\sqrt{10}$

c)

$\left(x-3\right)^2+\left(y-18\right)^2\ =\ 10\sqrt{10}$

d)

$\left(x+9\right)^2+\left(y-3\right)^2=10\sqrt{2}$

Practice for Ch. 9 Test - Circles

Total questions: 21

Worksheet time: 4hrs 35mins

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