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Prove that the sum of the squares of the...

Prove that the sum of the squares of the sides of a rhombus is equal to the sum of the squares of its diagonals.

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AGRAWAL PUBLICATION-TRIANGLES-EXAMPLE
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  2. R and S are points on the sides DE and EF respectively of a triangle D...

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  3. Prove that the sum of the squares of the sides of a rhombus is equal t...

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  4. Areas of two similar triangles are 36 cm^2 and 100 cm^2. If the length...

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  5. In triangle ABC ~ triangle DEF, AB = 4 cm, DE =6cm , EF = 9 cm and FD...

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  6. In the figure if triangle ABC ~ triangle DEF and their sides of length...

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  7. In the figure, if angle 1 = angle 2 and triangle NSQ = triangle MTR, t...

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  8. Three 30^@ - 60^@ - 90^@ set squares are together as shown in the diag...

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  9. Three 30^@ - 60^@ - 90^@ set squares are together as shown in the diag...

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  10. In the figure, angle D = angle E and (AD)/(DB)=(AE)/(EC), prove that B...

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  11. In triangle ABC, angle B = 90^@ and D is the mid point of BC. Prove th...

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  12. Diagonals of a trapezium PQRS intersect each other at the point O, PQ|...

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  13. In the figure, if AB||DC and AC, PQ intersect each other at the point ...

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  14. In the given figure, if DE||BC, then find the ratio of ar(Delta ADE) a...

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  15. ABCD is a trapezium in which AB||DC and P, Q are points on AD and BC r...

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  16. Two right triangles ABC and DBC are drawn on the same hypotenuse BC an...

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  17. Diagonals of a trapezium PQRS intersect each other at the point O, PQ|...

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  18. In the given figure, if angle ACB = angle CDA, AC = 8 cm and AD = 3 cm...

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