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In Fig. 12.69, find the area of the shad...

In Fig. 12.69, find the area of the shaded region, enclosed between two concentric circles of rade 7 cm and 14 cm where `angleAOC=40^(@) ("Use "pi=(22)/(7))`

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VK GLOBAL PUBLICATION-AREAS RELATED TO CIRCLES-Proficiency Exercise (Short Answer Questions -II)
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  3. A piece of wire 11 cm long is bent into the form of an arc of a circle...

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  4. Find the area of the flower bed (with semicircular ends).

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  6. Find the area of the shaded field shown in Fig. 12.61.

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  7. Find the area of the shaded region in figure, in figure, where arcs dr...

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  8. In figure arcs are drawn by taking vertices A, B and C of an equilater...

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  9. In Fig. 12.64, ABCP is a quadrant of a circle of radius 20 cm. With AC...

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  10. In the following figure, ABC is a right angled triangle at A. Find the...

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

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  12. A square water tank has its side equal to 40 m. There are four semi...

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  13. In fig. ABCD is a rectangle with AB= 14 cm and BC= 7 cm. Taking DC, BC...

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  14. Three semicirles each of diameter 3 cm, a circle of diameter 4.5 cm an...

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  15. The cost of fencing a circular field at the rate of 16 per metre is 30...

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  16. A sector of 100^(@) cut off from a circle contains area 70.65 cm^(2). ...

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  17. A boy is cycling such that the wheels of the cycle are making 140 r...

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  18. In the given figure, ABCD is a square of side 14 cm. Semi-circles are ...

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  19. In Fig. 12.69, find the area of the shaded region, enclosed between tw...

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  20. In Fig. 12.70. a dord AB of a circle, with centre and radius 10 cm, th...

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