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Find the area of a quadrilateral ABCD wh...

Find the area of a quadrilateral ABCD whose sides AB,BC, CD and DA are 9 cm, 40 cm, 28 cm and 15 cm respectivelyand the angle between the firswt two sides is a right angle.

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MODERN PUBLICATION-HERON'S FORMULA-EXERCISE
  1. The sides of a triangle are in the ratio 3:5:7 and its perimeter is 60...

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  2. The base of an isosceles triangle is 16cm and its area is 48 cm^2. The...

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  3. Each of the equal sides of an isosceles triangle is 13 cm and its base...

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  4. The area of an equilateral triangle is 81sqrt(3)cm^2. Its height is

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  5. The lengths of each side of an equilateral triangle of area 4sqrt(3)cm...

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  6. A sqaure and an equilateral triangle have equal perimeters. If the dia...

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  7. An isosceles right triangle has area 8 cm^2. The length of its hypoten...

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  8. The sides of a triangle are 56 cm, 60 cm and 52 cm long. Then the area...

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  9. The length of each side of an equilateral triangle having an area of 9...

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  10. If the area of an equilateral triangle is 16 sqrt3 cm^2, then the peri...

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  11. The edges of a triangular board are 6 cm, 8 cm and 10 cm. The cost of ...

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  12. The area of a trapezium of height 3 cm is 12 cm^2. If one of the paral...

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  13. In the fig. fourth quadrant of a circle is OACB where O is the centre ...

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  14. What is the hypotenuse in an isosceles right angled triangle is equal ...

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  15. The area of a rhombus is 192 cm^2. The length of one diagonal is twice...

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  16. The sides of a triangular field are 20m, 37 m and 51 m. Find the numbe...

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  17. A parallelogram, the length of whose side are 60 cm and 25 cm has one ...

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  18. From a point in the interior of an equilateral triangle, perpendicular...

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  19. Find the area of a quadrilateral ABCD whose sides AB,BC, CD and DA are...

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  20. A field in the form of a parallelogram has sides 60 m and 40 m and one...

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