Test: Circles II - Challenging

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Question 1:   Find the radius of the following circle:
3.5
2 3
3 3 2
3
Question 2:   Find the area of a circle with the diameter 12.5cm
490.87c m 2
152.41c m 2
122.72c m 2
315.36c m 2
Question 3:   Find the circumference of a circle with the diameter 13cm
81.68cm
20.42cm
61.26cm
40.84cm
Question 4:   What is the radius of a circle with the circumference 26πcm ?
19.5cm
6.5cm
26cm
13cm
Question 5:   Find TA if line t is the tangent to a circle:
6cm
9cm
11cm
12cm
Question 6:   Find angle α :
90°
130°
65°
70°
Question 7:   Find n :
17.34cm
8.67cm
13.18cm
11.25cm
Question 8:   Find h :
32.15cm
19.24cm
17.82cm
21.19cm
Question 9:   Find angle α :
300°
200°
250°
260°
Question 10:   Find angle α :
270°
250°
280°
300°