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A traffic signal board, indicating SC...

A traffic signal board, indicating SCHOOL AHEAD, is an equilateral triangle with side ` a '` . Find the area of the signal board, using Herons formula. If its perimeter is `180 c m ,\ ` what will be the area of the signal board?

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RD SHARMA ENGLISH-HERON'S FORMULA-All Questions
  1. Find the percentage increase in the area of a triangle if its each ...

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  2. The lengths of the sides of a triangle are 5\ c m ,\ 12\ c m\ a n d...

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  3. A traffic signal board, indicating SCHOOL AHEAD, is an equilateral ...

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  4. The triangular side walls of a flyover have been used for advertisem...

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  5. A triangular pack A B C HAS SIDES 120 m ,\ 80 m\ a n d\ 50 m . (See in...

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  6. There is a slide in a park. One of its side walls has been painted ...

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  7. A triangle and a parallelogram have the same base and the same area...

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  8. Find the area of a triangle whose sides are respectively 150 cm, 120 c...

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  9. Find the area of a triangle hose sides are 9c m, 12 cm\ a n d\ 15\ c...

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  10. Find the area of a triangle two sides of which are 18\ c m\ a n d\ ...

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  11. In a Delta A B C ,\ A B=15 c m ,\ B C=13 c m\ a n d\ A C=14 c mdot Fin...

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  12. The perimeter of a triangular field is 540 m and its sides are in ...

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  13. The perimeter of a triangle is 300 mdot If its sides are in the ...

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  14. The perimeter of a triangular field is 240dm. If two of its sides a...

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  15. A triangle has sides 35 cm, 54 cm and 61 cm long. Find its area. Also,...

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  16. The lengths of the sides of a triangle are in the ration 3:4:5 and ...

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  17. The perimeter of an isosceles triangle is 42 c m and its base is (3/2)...

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  18. Find the area of the shaded region in Figure.

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  19. Find the area of a quadrilateral A B C D\ whose sides are 9\ m ,\ ...

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  20. Find the area of the quadrilateral A B C D , in which A B=7c m ,\ B...

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