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DeltaPQR~DeltaDEF and their areas are 49...

`DeltaPQR~DeltaDEF` and their areas are `49` sq-cm and `121` sq-cm respectively. If `DE=44cm`, then the value of `PQ` is

A

`23cm`

B

`30cm`

C

`32cm`

D

`28cm`

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CALCUTTA BOOK HOUSE-SIMILARITY-Exercise 5.2
  1. DeltaABC and DeltaBDE are two equilateral triangles. If D is the mid-p...

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  2. If the ratio of the sides of two similar triangles be 4:9, then ratio ...

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  3. DeltaPQR~DeltaDEF and their areas are 49 sq-cm and 121 sq-cm respectiv...

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  4. Write the following sentences true or false: Any two identical image a...

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  5. C and B are two points on the straight line XY, P is an external point...

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  6. In DeltaPQR, a straight line parallel to QR intersects PQ and PR at th...

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  7. Fill the blank :All (equilateral/isosceles) triangle are always ident...

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  8. state true or false; Two equiangular triangles are always congruent.

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  9. state true or false; If the two sides of two triangles are in proport...

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  10. If the areas of two similar triangles be equal, they are .

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  11. The ratio of the areas of two similar triangels is equal to the of the...

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  12. Prove that the perimeters of two similar triangles are proportional to...

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  13. AD is a perpendiuclar drawn from the vertex A of the right-angled tria...

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  14. Fill the blank :All circles are(uniform/identical)

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  15. Fill the blank :All square are(uniform/identical)

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  16. Write the following sentences true or false: Any two identical figure ...

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  17. The diagonals of the quadrilateral ABCD intersect each other at O in s...

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  18. In the figure beside is a point on the extended part of CB.DeltaABC is...

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  19. D is a point on the side BC of DeltaABC. If /ADC=/BAC, then prove that...

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  20. If AD and PM be two medians of DeltaABC and DeltaPQR respectively, whe...

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