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The area of an equilateral triangle ABC ...

The area of an equilateral triangle ABC is `17320.5cm^2`.With each vertex of the triangle as center,a circle is drawn with radius equal to half the length of the side of the triangle(seeFig.12.28).Find the area of the shaded region.(use `pi=3.14` and `sqrt3=1.73205`)

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R G PUBLICATION-AREAS RELATED TO CIRCLES-EXERCISE
  1. In Fig.12.25,ABCD is a square of side 14 cm.with centres A,B,C and D,f...

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  2. In Fig12.26 depicts a racing track whose left and right ends are semic...

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  3. The area of an equilateral triangle ABC is 17320.5cm^2.With each verte...

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  4. On a square handkerchief,nine circular designs each of radius 7 cm are...

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  5. If Fig.12.30,OACB is a quadrant of a circle with centre O and radius 3...

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  6. If Fig.12.30,OACB is a quadrant of a circle with centre O and radius 3...

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  7. In Fig.12.31,a square OABC is inscribed in a quadrant OPBQ.If OA=20cm,...

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  8. AB and CD are respectively arcs of two concentric circles of radii 21 ...

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  9. In Fig.12.33.ABC is a quadrant of a circle of radius 20 cm and a semic...

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  10. Calculate the area of the designed region in Fig.12.34 common between ...

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  11. What is the area of the sector of a circle whose radius r and length o...

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  12. If the diameter of a semi-circular protactor is 14 cm then find its pe...

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  13. What is the ratio of the areas of a circle and an equilateral triangle...

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  14. If the perimeter of a semi circle protactor is 66 cm then find its rad...

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  15. If a chord of a circle of radius 14 cm subtends a right angle at the c...

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  16. The circumference of a circle is 44cm then its area will be

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  17. If the circumference and the area of a circle are numerically equal th...

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  18. The perimeter of a circular field is 242 m then the area of the field ...

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  19. The difference between the circumference and radius of a circle is 37 ...

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  20. The area of a circle is 49pi cm^2.Its circumference is

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