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Two concentric circles have radii 20 cm ...

Two concentric circles have radii 20 cm and 15 cm. Find the area of ring shaped region

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MBD-Areas of Plane Figures.-Exercise
  1. In the fig. fourth quadrant of a circle is OACB where O is the centre ...

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  2. The length of minute hand clock is 10 cm. Find the area made by minute...

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  3. Two concentric circles have radii 20 cm and 15 cm. Find the area of ri...

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  4. Area of an equilateral triangle is 17300 cm^2. By taking each vertex o...

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  5. Find the perimeter of the circle whose area is 6.16 cm^2.

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  6. Find the area of the circle whose perimeter is equal to the perimeter ...

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  7. When a wire is bent into a square then it covers the area of 121 cm^2....

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  8. A piece of paper is in the form of rectangle ABCD in which AB=18cm,BC=...

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  9. The area covered by two concentric circles is 770 cm^2. The outer radi...

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  10. ABCD is a square of side 4 cm. With every comer as the centre, quadran...

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  11. In the figure, the shaded portion shows the area cleaned by the wiper ...

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  12. A horse is thetered to graze the grass at one comer of a rectangular p...

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  13. There are 64 equal squares in the chess board and every Square has are...

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  14. A horse is thethered to one corner of a rectangular field of dimension...

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  15. A sheet of paper is in the form of a rectangle ABCD in which AB = 40 c...

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  16. A playground isin the form of a rectangle whose both sides are taken a...

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  17. The length of minute hand clock is 14 cm. Find the area covered by the...

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  18. The radius of the circle is 14 m. Find the radius of another circle wh...

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  19. The diameter of a semi circular protector is 14 cm. Find its perimeter

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  20. A wire is in the form of a circle of radius 42 cm. It is converted int...

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