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In /\ A B C , if A D|B C and A D^2=B Dxx...

In `/_\ A B C` , if `A D_|_B C` and `A D^2=B DxxD C` , prove that `/_B A C=90dot` .

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RD SHARMA ENGLISH-TRIANGLES-All Questions
  1. In Figure, express x in terms of a ,\ b and c.

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  2. In Figure, /B A C=90dot and segment A D|B C . Prove that A D^2=B D...

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  3. In /\ A B C , if A D|B C and A D^2=B DxxD C , prove that /B A C=90do...

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  4. In a A B C ,\ \ B D and C E are the altitudes. Prove that A D B an...

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  5. In Figure, A B C D is a trapezium with AB||DC . If /\ A E D is simil...

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  6. If E is a point on side AD produced of a parallelogram ABCD and BE in...

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  7. In Figure, A B C is a right triangle right angled at B and D is the ...

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  8. In Figure, A D and B E are respectively perpendiculars to B C and A ...

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  9. In Fig. 4.124, E is a point on side C B produced of an isosceles...

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  10. In Fig. 4.125, F E C~= G B D and /1=/2 . Prove that A D E A ...

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  11. In Fig. 4.126, (O A)/(O C)=(O D)/(O B) . Prove that /A=/C and /B...

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  12. In Figure, D E F G is a square and /B A C=90 . Prove that (i) A G F...

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  13. In A B C ,\ \ D E is parallel to base B C , with D on A B and E on...

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  14. In Figure, if A D|B C and (B D)/(D A)=(D A)/(D C) , prove that A B ...

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  15. In Figure, if /\ A B E~= /\A C D , prove that /\ A D E ~ /\ A B C .

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  16. In Figure, /A C B=90dot and C D|A B . Prove that (C B^2)/(C A^2)=(B ...

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  17. In Figure, /\A C B ~ /\A P Q . If B C=8c m , P Q=4c m , B A=6. 5 c m a...

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  18. A vertical stick 10 cm long casts a shadow 8 cm long. At the same t...

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  19. In Figure, AB||QR . Find the length of P B .

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  20. In Fig. 4.138, X Y || B C . Find the length of X Y .

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