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The ratio of radius and circumference of...

The ratio of radius and circumference of a circle is `:`

A

more than three times of its diameter

B

three times of its diameter

C

less than three times of its diameter

D

three times of its radius

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NCERT EXEMPLAR-PERIMETER AND AREA-Exercise
  1. In Fig. 9.19, EFGH is a parallelogram, altitudes FK and FI are 8 cm an...

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  2. In reference to a circle the value of pi is equal to

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  3. The ratio of radius and circumference of a circle is :

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  4. Area of triangle PQR is 100 cm^2 (Fig. 9.20). If altitude CT is 10 cm...

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  5. In Fig. 9.21, if PR = 12 cm, QR = 6 cm and PL = 8 cm, then QM is

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  6. In Fig. 9.22 DeltaMNO is a right-angled triangle. Its legs are 6 cm a...

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  7. Area of a right-angled triangle is 30 cm^2. If its smallest side is 5 ...

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  8. Circumference of a circle of diameter 5 cm is

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  9. Circumference of a circle disc is 88 cm. Its radius is

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  10. Length of tape required to cover the edges of a semicircular disc of r...

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  11. Area of circular garden with diameter 8 m is

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  12. Area of a circle with diameter 'm' radius 'n' and circumference 'p' is

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  13. A table top is semicircular in shape with diameter 2.8 m. Area of this...

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  14. If 1 m^2 -= x mm^2, then the value of x is

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  15. If p squares of each side 1mm makes a square of side 1cm, then p is

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  16. 12 m^2 is the area of

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  17. If each side of a rhombus is doubled, how much will its area increase?

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  18. If the sides of a parallelogram are increased to twice its original le...

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  19. If the radius of a circle is doubled, its area is increased by (a) ...

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  20. What will be the area of the largest square that can be cut out of a c...

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