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The areas of two similar triangleABC and...

The areas of two similar `triangleABC and triangleDEF` are `225cm^2 and 81cm^2` respectively. If the longest side of the larger triangle `triangleABC` be 30 cm, find the longest side of the smaller triangle DEF.

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CBSE COMPLEMENTARY MATERIAL-TRIANGLE-Very Short Answer Type Questions -State True or False :
  1. If the three sides of a triangle are a, sqrt3a and sqrt2a, then the me...

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  2. vertical pole of length 3 m casts a shadow of 7 m and a tower casts a ...

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  3. The lengths of the diagonals of a rhombus are 16 cm and 12 cm. Then, t...

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  4. If triangleABC ~ triangleEDF and triangleABC is not similar to triangl...

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  5. Pythagoras theorem

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  6. State the basic proportionality theorem.

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  7. Is the triangle with sides 12 cm, 16 cm and 18 cm a right triangle?

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  8. If triangleABC ~ triangleQRP, ("Area "(triangleABC))/("Area"(triangleP...

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  9. In the given Fig., angleM =angleN =46^(@), Express x in terms of a, b ...

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  10. In the given Fig. triangleAHK ~ triangleABC. If AK=10cm, BC=3.5 cmj an...

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  11. It is given that DeltaDEF~DeltaRPQ. Is it true to say that angleD = an...

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  12. If the corresponding Medians of two similar triangles are in the ratio...

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  13. An aeroplane leaves an airport and flies due west at a speed of 2100 k...

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  14. The areas of two similar triangleABC and triangleDEF are 225cm^2 and 8...

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  15. In the given figure, if triangleABC ~ trianglePQR, find the value of x...

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  16. In the given figure, XY ||QR and (PX)/(XQ)=(PY)/(YR)=1/2", find XY : Q...

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  17. In the given figure, find the value of x which will make DE||AB ?

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  18. If triangleABC ~ triangleDEF, BC= 3EF and ar(DABC) =117cm^2 find area ...

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  19. If triangleABC and triangleDEF are similar triangles such that angleA ...

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  20. If the ratio of the corresponding sides of two similar triangles is 2 ...

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