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An umberalla has 8 ribs which area equal...

An umberalla has 8 ribs which area equally spaced. Assuming umbrella to be a flat circle of radius 45 cm, find the area between the two consecutive ribs of the umbrella.

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The correct Answer is:
`(22275)/(28)cm^(2)`
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NAND LAL PUBLICATION-AREAS RELATED TO CIRCLES -EXERCISE 12.2
  1. Find the area of sector of a circle with radius 6 cm, if angle of the ...

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  2. Find the area of a quadrant of a circle whose circumference is 22 cm.

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  3. The length of the minute hand of a clock is 14 cm. Find the area swept...

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

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

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  6. In a circle of a radius 7 cm, an arc subtends an angle of 60^(@) at th...

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  7. In a circle of a radius 7 cm, an arc subtends an angle of 60^(@) at th...

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

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  9. A chord of a circle of radius 15 cm subtends an angle of 60^@ at the c...

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  10. A chord of a circle of radius 12 cm subtends an angle of 120^@ at the ...

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  11. A horse is tied to a peg at one corner of a square shaped grass field ...

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  12. A horse is tied to a peg at one corner of a square shaped grass field ...

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

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

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  15. An umberalla has 8 ribs which area equally spaced. Assuming umbrella t...

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  16. A car has two wipers which do not overlap. Each wiper has a blade of l...

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  17. To warn ships for underwater rocks, a lighthouse spreads a red coloure...

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  18. A round table cover has six equal designs as shown in fig. If the radi...

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  19. Area of sector of angle p (in degrees) of a circle with Radius R is :

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