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In a circle of radius 21 cm,an arc subte...

In a circle of radius 21 cm,an arc subtends an angle of `60^@` at the centre.Find (i) the length of the arc

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R G PUBLICATION-AREAS RELATED TO CIRCLES-EXERCISE
  1. A chord of a circle of radius 10 cm subtends a right angle at the cent...

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  2. A chord of a circle of radius 10 cm subtends a right angle at the cent...

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  3. In a circle of radius 21 cm,an arc subtends an angle of 60^@ at the ce...

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  4. In a circle of radius 21 cm,an arc subtends an angle of 60^@ at the ce...

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  5. In a circle of radius 21 cm,an arc subtends an angle of 60^@ at the ce...

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  6. A chord of circle of radius 15 cm subtends an angle of 60^@ at the cen...

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  7. A chord of a circle of radius 12cm subtends an angle of120^@at the cen...

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  8. A brooch is made with silver wire in the form of a circle with diamete...

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  9. A brooch is made with silver wire in the form of a circle with diamete...

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  10. An umbrella has 8 ribs which are equally spaced (see Fig.12.13). Assu...

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  11. A car has two wipes which do not overlap.Each wiper has a blade of len...

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  12. To warn ships for underwater rocks,a lighthouse spreads a red coloures...

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  13. A round table cover has six equal designs as shown in Fig.12.14. If th...

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  14. Tick the correct answer in the following :Area of a sector of angle p(...

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  15. Find the area of the shaded region in Fig.12.19,If PQ=24cm,PR=7 cm and...

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  16. Find the area of the shaded region in Fig12.20,if radius of the two co...

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  17. Find the area of the shaded region in Fig.12.21,If ABCD is a square of...

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  18. Find the area of the shaded region in Fig.12.21,,where a circular arc ...

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  19. From each cornor of a square of side 4 cm a quadrant of a circle of ra...

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  20. In Fig.12.25,ABCD is a square of side 14 cm.with centres A,B,C and D,f...

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