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Unformatted text preview: 1 Area and Volume (II) Form 2 Section A Multiple Choice Questions 1. The ratio of the radii of two circles is 2 : 3. Find the ratio of their circumference. A. 3 : 2 B. 2 : 3 C. 1 1 : 2 3 D. 3 2 : 2 2 2. If the radius of a circle is increased by 1 cm, then its circumference is increased by A. 1 cm B. 2 cm C. cm D. 2 cm 3. The sum of the areas of two circles is 85 cm 2 . If the radius of one circle is 7 cm, find the radius of the other circle. A. 4 cm B. 5 cm C. 6 cm D. 7 cm 4. In the figure, the area of the smaller circle is 121 cm 2 . If the radius of the larger circle is 7 cm longer than that of the smaller circle, find the area of the shaded region. A. 192 cm 2 B. 203 cm 2 C. 345 cm 2 D. 462 cm 2 5. Find the perimeter of the sector OAB in the figure.. A. 20 3 cm B. 20 16 3 cm C. 10 16 3 cm D. 80 16 3 cm 6. The area of a sector is 21 cm 2 . If the radius of the sector is 3 cm, find its perimeter....
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 Spring '08
 WOUTERS
 Algebra

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