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In Fig. 15.112, the area of the shaded ...

In Fig. 15.112, the area of the shaded region is (FIGURE) (a) `3pi\ c m^2` (b) `6pi\ c m^2` (c) `9pi\ c m^2` (d) `7pi\ c m^2`

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In Fig. 15.107, the shaded area is (FIGURE) (a) 50(pi-2)c m^2 (b) 25(pi-2)c m^2 (c) 25(pi+2)c m^2 (d) 5(pi-2)c m^2

The area of a circle is 9pi\ c m^2dot Its circumference is (a) 6pi\ c m (b) 36pi\ c m (c) 9pi\ c m (d) 36pi^2\ c m

The curved surface of a right circular cone of height 15 cm and base diameter 16 cm is (a) 60pi\ c m^2 (b) 68pi\ c m^2 (c) 120pi\ c m^2 (d) 136pi\ c m^2

The area of the circle that can be inscribed in a square of side 10 cm is (a) 40pi\ c m^2 (b) 30pi\ c m^2 (c) 100\ pi\ c m^2 (d) 25\ pi\ c m^2

If A B is a chord of length 5sqrt(3) cm of a circle with centre O and radius 5 cm, then area of sector O A B is (a) (3pi)/8c m^2 (b) (8pi)/3c m^2 (c) 25pi\ c m^2 (d) (25pi)/3c m^2

A right triangle with sides 3 cm, 4 cm and 5 cm is rotated about the side of 3 cm to form a cone. The volume of the cone so formed is (a) 12pi\ c m^3 (b) 15pi\ c m^3 (c) 16pi\ c m^3 (d) 20pi\ c m^3

If a solid sphere of radius 10 cm is moulded into 8 spherical solid balls of equal radius, then the surface area of each ball is 50pi\ c m^2 (b) 60pi\ c m^2 (c) 75pi\ c m^2 (d) 100pi\ c m^2

In Fig. 15.108, the area of the segment P A Q is (FIGURE) (a) (a^2)/4(pi+2) (b) (a^2)/4(pi-2) (c) (a^2)/4(pi-1) (d) (a^2)/4(pi+1)

The largest sphere is cut off from a cube of side 6cm. The volume of the sphere will be 27 pi\ c m^3 (b) 36pi\ c m^3 (c) 108pi\ c m^3 (d) 12pi\ c m^3

The area of a circle is 220\ c m^2 . The area of a square inscribed in it is (a) 49\ c m^2 (b) 70\ c m^2 (c) 140\ c m^2 (d) 150\ c m^2

RD SHARMA ENGLISH-AREAS RELATED TO CIRCLES-All Questions
  1. If diameter of a circle is increased by 40%, then its area increase...

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  2. In Fig. 15.107, the shaded area is (FIGURE) (a) 50(pi-2)c m^2 (b) ...

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  3. In Fig. 15.108, the area of the segment P A Q is (FIGURE) (a) (a^2)/4(...

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  4. In Fig. 15.109, the area of segment A C B is (FIGURE) (a) (pi/3-(sq...

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  5. If the area of a sector of a circle bounded by an arc of length 5pi ...

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  6. In Fig. 15.110, the ratio of the areas of two sectors S1 and S2 is ...

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  7. If the area of a sector of a circle is 5/(18) of the area of the cir...

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  8. If the area of a sector of a circle is 7/(20) of the area of the ci...

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  9. In Fig. 15.111, if A B C is an equilateral triangle, then shaded ar...

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  10. In Fig. 15.112, the area of the shaded region is (FIGURE) (a) 3pi\ c...

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  11. If the perimeter of a circle is equal to that of a square, then the...

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  12. 13. The radius of a circle is 20cm. Three more concentric circles are ...

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  13. The area of a sector whose perimeter is four times its radius r uni...

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  14. If a chord of a circle of radius 28 cm makes an angle of 90o at ...

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  15. If area of a circle inscribed in an equilateral triangle is 48pi sq...

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  16. The hour hand of a clock is 6 m long. The area swept by it between ...

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  17. A B C D is a square of side 4 cm. If E is a point in the interio...

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  18. If the area of a circle is equal to the sum of the areas of two circ...

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  19. If pi is taken as 22//7 , the distance (in metres) covered by a wh...

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  20. ABCD is a rectangle whose three vertices are B(4, 0),  C(4, 3) and D(...

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