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The areas of two circles are in the rati...

The areas of two circles are in the ratio `16 : 25.` Find the ratio of their circumferences.

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RD SHARMA-MENSURATION-2-All Questions
  1. Find the area of the shaded region given in Fig. 12.72.

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  2. The circumferences of two circles are in the ratio 2: 3. Find the r...

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  3. The areas of two circles are in the ratio 16 : 25. Find the ratio of t...

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  4. A square park has each side of 100 m. At each corner of the park, t...

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  5. Four equal circles are described about the four corners of a square...

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  6. A horse is placed for grazing inside a rectangular field 70 m by 52...

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  7. P Q R S is a diameter of a circle of radius 6 cm. The lengths P Q ,...

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  8. Find the area of a circle whose radius is (a)7 cm    (b) 2.1 m (c)...

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  9. Find the area of a circle whose diameter is (a)8.4 cm    (b) 5.6 m (c)...

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  10. The area of a circle is 154 c m^2dot Find the radius of the circle.

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  11. Find the radius of a circle, if its area is (a)4\ pi\ c m^2 (b) 55. 4...

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  12. The circumference of a circle is 3.14 m, find its area.

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  13. If the area of a circle is 50. 24\ m^2 , find its circumference.

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  14. A horse is tied to a pole with 28 m long string. Find the area wher...

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  15. A steel wire when bent in the form of a square encloses an area of ...

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  16. A road which is 7 m wide surrounds a circular park whose circumfere...

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  17. Prove that the area of a circular path of uniform width h surroundi...

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  18. The perimeter of a circle is4pir\ c mdot What is the area of the circl...

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  19. A wire of 5024 m length is in the form of a square. It is cut and m...

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  20. The radius of a circle is 14 cm. Find the radius of the circle whose ...

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