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In DeltaABC,AD is the inernal besector o...

In `DeltaABC,AD` is the inernal besector of `angleA`. If BD = 5cm , BC=7.5 cm , then AB:AC=

A

`2 : 1`

B

`1 : 2`

C

`4 : 5`

D

`3 : 5`

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The correct Answer is:
A
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MTG IIT JEE FOUNDATION-TRIANGLES - Exercise (Multiple Choice Questions) (LEVEL -1 )
  1. In Delta ABC,DE||BC so that AD==2.4 cm, AE= 3.2 cm and EC=4.8 cm, then...

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  2. In Delta ABC, DE||BC so that AD=(7x-4) cm, AE=(5x-2) cm, DB=(3x+4) cm ...

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  3. In DeltaABC,AD is the inernal besector of angleA. If BD = 5cm , BC=7....

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  4. In the given fig., AB || DC and diagonals AC and BD intersects at O. I...

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  5. In Delta ABC it is given that (AB)/(AC)=(BD)/(DC) . If angle B=70^(@) ...

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  6. In DeltaABC,AD is the bisector of angleA . Then , (ar(DeltaABD))/(ar(D...

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  7. Delta ABC~Delta DEF and the perimeters of Delta ABCd and Delta DEF are...

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  8. DeltaABC ~ DeltaDEF such that AB = 9.1 cm and DE =6.5 cm. If the perim...

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  9. A vertical stick 20 m long casts a shadow 10m long on the ground. A...

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  10. Two isosceles triangles have equal angles and their areas are in the ...

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  11. If A B C and D E F are similar such that 2\ A B=D E and B C=8c m ...

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  12. In A B C , a line X Y parallel to B C cuts A B at X and A C at Y ....

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  13. Let ABC be an equilateral triangel. Let BE|CA meeting CA at E, then (A...

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  14. A right triangle has hypotenuse of length p\ c m and one side of...

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  15. ABC is an isosceles triangle with AC = BC. If A B^2=2A C^2, prove tha...

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  16. DeltaABC is a right triangle , right angled at A and ADbotBC . If AB...

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  17. Delta ABC is right-angled at A and AD bot BC. If BC=13 cm and AC=5 cm,...

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  18. L and M are the mid points of AB and BC respectively of DeltaABC , r...

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  19. In the given figure , x in terms of a , b and c is

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  20. In figure, two line segments AC and BD intersects each other at the po...

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