Circles I - Normal

Question 1: Find the area of the circle:

A

15.7 c m^{2}

B

62.8 c m^{2}

C

78.5 c m^{2}

D

31.4 c m^{2}

Question 2: Find the circumference of the circle:

A

455.4 c m

B

75.4 c m

C

118.4 c m

D

37.7 c m

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

d = 15 c m

A

176.71 c m^{2}

B

47.12 c m^{2}

C

148.04 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

14 c m

B

43.9 c m

C

3.5 c m

D

11 c m

Question 5: Find the measure of the angle

α

:

A

80^{\circ}

B

85^{\circ}

C

87^{\circ}

D

90^{\circ}

Test: Circles I - Normal