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If the diagonal of a square is decrea...

If the diagonal of a square is decreased by 15%, find the percentage decrease in its area.

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RS AGGARWAL-AREA-All Questions
  1. The diagonals of two squares are in the ratio of 2 : 5. Find the ra...

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  2. On increasing each side of a square by 25%, the increase in area wi...

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  3. If the diagonal of a square is decreased by 15%, find the percentag...

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  4. A square park is surrounded by a path of uniform width 2 metres all...

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  5. If the side of a square is increased by 8 cm, its area increases by...

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  6. If the length of a certain rectangle is decreased by 4 cm and the w...

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  7. The dimensions of a room are 12.5 m by 9m by 7m. There are 2 doors ...

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  8. A room is half as long again as it is broad. The cost of carpeting ...

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  9. The cost of fencing an equilateral triangular park and a square par...

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  10. The altitude drawn to the base of an isosceles triangle is 8 cm and...

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  11. Find the length of the altitude of an equilateral triangle of side ...

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  12. The base and altitude of a right angled triangle are 12 cm and 5 cm...

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  13. In two triangles, the ratio of the areas is 4 : 3 and the ratio of ...

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  14. If the height of a triangle is increased by 30% and its base is dec...

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  15. The base of a parallelogram is twice its height. If the area of the...

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  16. Find the area of a rhombus, each side of which measures 20 cm and o...

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  17. The length of one side of a rhombus is 6.5 cm and its altitude is 1...

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  18. The difference between two parallel sides of a trapezium is 4 cm. T...

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  19. Find the length of a rope by which a cow must be tethered in order ...

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  20. The area of a circular field is 13.86 hectares. Find the cost of fe...

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