Test: Circles I - Ambitious

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Question 1:   Calculate the area of a circle if its circumference is 113.1cm
468.2c m 2
1017.9c m 2
706.9c m 2
355.3c m 2
Question 2:   Calculate the radius of a circle if its area is 78.54cm 2
4cm
6cm
7cm
5cm
Question 3:   Find the area of a sector:
453.96c m 2
187.61c m 2
302.64c m 2
907.92c m 2
Question 4:   Calculate the angle α if the sector area is 32.72c m 2
140
125
150
170
Question 5:   Calculate the area of a circle:
100.5c m 2
226.2c m 2
50.3c m 2
143.4c m 2
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