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Each side of an equilateral triangle is equal to the radius of a circle whose area is `154\ c m^2dot` The area of the triangle is (a)`(7sqrt(3))/4\ c m^2` (b) `(49sqrt(3))/2\ c m^2` (c)`(49sqrt(3))/4\ c m^2` (d) `(7sqrt(3))/2\ c m^2`

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RD SHARMA-MENSURATION-2-All Questions
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  8. The minute hand of a clock is 14 cm long. How far does the tip of th...

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  9. The cost of fencing a semi-circular garden of radius 14 m at Rs 10 p...

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

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

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

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  15. The area of a circle is 9pi\ c m^2dot Its circumference is (a)6pi\ c m...

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  16. The area of a circle is increased by 22 c m^2 when its radius is incre...

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  17. The radii of two circles are in the ratio 2: 3. The ratio of their ar...

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  18. The areas of two circles are in the ratio 49 : 36. The ratio of their...

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  19. The circumferences of two circles are in the ratio 3: 4. The ratio o...

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