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Four equal circles, each of radius 5cm, ...

Four equal circles, each of radius 5cm, touch each other as shown in Figure. Find the area included between them.

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  13. The area of a square is equal to the area of a circle. The ratio be...

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  14. If A is the area and C is the circumference of a circle, then its ra...

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  15. The area of a circle of circumference C is (a)(C^2)/(4pi) (b) (C^2)/(...

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  16. The circumference of a circle is 44 cm. Its area is (a)77 c m^2 (b)...

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  17. Each side of an equilateral triangle is equal to the radius of a cir...

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