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The perimeter of an equilateral triangle...

The perimeter of an equilateral triangle is 60 cm then its area is …………… `cm^(2).`

A

149.3

B

170.1

C

137.4

D

173.2

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BEYOND PUBLICATION-MENSURATION-EXERCISE
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  2. In a cone, d = 14 cm, l = 10 cm then CSA = …………. cm^(2).

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  3. In a cube, a = 8 cm then TSA = ……….. cm^(2).

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  4. Number of edges of a cuboid is ……

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  6. Volume of cone with d as diameter and h as height is ……… units^(3).

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  7. The area of the base of a right circular cone is 78.5 cm^(2). If its h...

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  8. The volume of a cuboid is 3,60,000 cm^(3). If its area is 5,600 cm^(2)...

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  9. The volume of cone is 462 cm^(3), r=7 cm then h = ……. cm.

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  10. The area of equilateral triangle is 36sqrt(3) cm^(2) then the perimete...

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  11. Surface area of a cube of side 27 cm is ………. cm^(3).

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  12. The perimeter of an equilateral triangle is 60 cm then its area is ………...

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  13. If the diagonal of a cube is 2.5 m then volume is …………. m^(3).

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  14. r^(3)=1728 then r = ………..

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  15. Number of faces of a cuboid is ……

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  16. Two cones have their heights in the ratio 2 : 6 and radii 9 : 3. Then ...

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  17. Two cones have their height in the ratio 1 : 3 and radii 3 : 1 then th...

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  18. How many Balls each of radius 2 cm can be made from a solid sphre of l...

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  19. If the diameter of a sphere is 'd' then its volume is

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  20. If radius is 2 cm then find the volume of a Ball.

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