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Q1:
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Given that the diameter of a circle is d, which formula gives the circumference of a circle? |
A. C = π d
B. C = 2π d
C. C = π d2
D. C = 2π d2 |
Answer 1:
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Q2:
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If OE = 6.1 m and π = 3.1, what is the area of the circle below?
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A. 37.8 cm2
B. 115.4 cm2
C. 461.4 cm2
D. 28.8 m2 |
Answer 2:
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Q3:
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In the diagram above, what would be the circumference of the circle? |
A. 37.82 cm
B. 75.64 cm
C. 18.91 cm
D. 115.4 cm
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Answer 3:
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Q4:
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The radius of the larger circle is 6 cm and the radius of the smaller circle is 4 cm. What is the area of the shaded part?
Use π = 3.1
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A. 62 cm2
B. 6.2 cm2
C. 12.4 cm2
D. 248 cm2 |
Answer 4:
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Q5:
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What name is given to the shaded shape above?
(Clue: Eliminate the wrong answers!)
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A. Armenia
B. Aluminium
C. Annual
D. Annulus
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Answer 5:
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Q6:
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Given that the diameter of a circle is d, which formula gives the area of a circle? |
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Answer 6:
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Q7:
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If the area of a circle is 20 cm2, which would be its radius? |
A. 5 cm
B. 2.5 cm
C. 10 cm
D. 6.4 cm
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Answer 7:
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Q8:
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A circle has a radius of 3 cm. What is its area in mm2, if π = 3.1 |
A. 2.79 mm2
B. 27.9 mm2
C. 279 mm2
D. 2790 mm2 |
Answer 8:
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Q9:
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Name a chord in the diagram below:
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A. OB
B. AC
C. DB
D. ED |
Answer 9:
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Q10:
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In the diagram above what name is given to line AC? |
A. chord
B. tangent
C. diameter
D. radius
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Answer 10:
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