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A rhombus sheet, whose perimeter is 32 m...

A rhombus sheet, whose perimeter is 32 m and whose one diagonal is 10 m long, is painted on both sides at the rate of Rs 5 per square metre. Determine the cost of painting.

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MODERN PUBLICATION-HERON'S FORMULA-EXERCISE
  1. Two parallel sides of a trapezium are 60 cm and 77 cm and other sides ...

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  2. Find the area of the quadrilateral ABCD in which AD = 24 cm, angleBAD ...

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  3. A rhombus sheet, whose perimeter is 32 m and whose one diagonal is 10 ...

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  4. Find the area of the blades of the magnetic compass shown in the figur...

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  5. Find the area of an equilateral triangle whose each side is 4 cm.

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  6. What is the area of an equilateral triangle whose sides is 'a'?

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  7. Find the area of a triangle whose sides are 3 cm, 4 cm and 5 cm.

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  8. Find the area of a triangle whose base is 5 cm and altitude 4 cm.

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  9. Find the area of an isosceles triangle having base a cm and one side b...

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  10. Find the area of an equilateral triangle having altitude h cm.

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  11. If each side of a triangle is doubled, then find the percentage increa...

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  12. If each side of an equilateral triangle is tripled, then find the perc...

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  13. The perimeter of a triangular field is 144 cm and the ratio of the sid...

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  14. If triangle be the area of the triangle, find the area of te triangle ...

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  15. True/False: If the base of an isosceles triangle is 6 cm and its per...

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  16. True/False: If the sides of a triangular field measure 51 m, 37 m a...

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  17. True/False: If each side of an equilateral triangle is 8 cm, then it...

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  18. True/False: If each side of a triangle is doubled, then the percenta...

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  19. True/False: If 'triangle' be the area of the triangle, then the area...

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  20. Fill in the Blanks: Square is a special type of

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