Circles I - Normal

Question 1: Find the area of the circle:

A

78.5 c m^{2}

B

31.4 c m^{2}

C

62.8 c m^{2}

D

15.7 c m^{2}

Question 2: Find the circumference of the circle:

A

37.7 c m

B

75.4 c m

C

455.4 c m

D

118.4 c m

Question 3: Find the area of a circle with a diameter:

d = 15 c m

A

148.04 c m^{2}

B

176.71 c m^{2}

C

47.12 c m^{2}

D

706.86 c m^{2}

Question 4: A circle has a radius of

7 c m

. What is the diameter of the circle?

A

11 c m

B

14 c m

C

3.5 c m

D

43.9 c m

Question 5: Find the measure of the angle

α

:

A

90^{\circ}

B

85^{\circ}

C

87^{\circ}

D

80^{\circ}

Question 6: Find the area of a sector:

A

314.2 c m^{2}

B

125.7 c m^{2}

C

157.1 c m^{2}

D

103.7 c m^{2}

Question 7: Find the arc length:

A

15.71 c m

B

10.47 c m

C

6.28 c m

D

7.85 c m

Question 8: Calculate the circumference of a circle if a radius is

11 c m

A

138.23 c m

B

108.57 c m

C

69.12 c m

D

380.13 c m

Question 9: Calculate the area of a circle if radius is

8 c m

A

78.96 c m^{2}

B

402.12 c m^{2}

C

50.27 c m^{2}

D

201.06 c m^{7}

Question 10: Calculate the area of a circle if circumference is

72 π c m

A

4071.5 c m^{2}

B

517.6 c m^{2}

C

226.2 c m^{2}

D

1017.9 c m^{2}

Test: Circles I - Normal

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