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In figure ,BA | AC,DE |DF such that BA =...

In figure ,`BA _|_ AC,DE _|_DF `such that BA =DE and BF=EC.then

A

`AB=EF`

B

`angleA=angleE`

C

`Delta ABC cong Delta DEF`

D

None

Text Solution

Verified by Experts

Given In figure ,`BA _|_ AC,DE _|_DF `such that BA =DE and BF=EC.
To show `" "Delta ABC cong Delta DEF. `
`Proof Since " " BF=EC `
On adding CF both sides we get
`" "BF+CF=EC+CF`
`In Delta ABC and Delta DEF, " "angleA=angleD=90^(@) " "[because BA_|_ AC and DE _|_ DF]`
`" "BC=EF" "["from Eq.(i)"]`
`and " " BA =DE " "["given"]`
`therefore " "Delta ABC cong Delta DEF " "["by RHS congruence rule"]`
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NCERT EXEMPLAR-TRIANGLES-Triangles
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  2. In the given figure,Delta CDE is an equlatel triangle triangle formed...

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  3. In figure ,BA | AC,DE |DF such that BA =DE and BF=EC.then

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  4. If Q is a point on the side SR of a triangle PSR such that PQ=PR then...

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  5. S in any point on side QR of a Delta PQR.Show that PQ + QR+RP gt 2PS.

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  6. D is any point on side AC of a Delta ABC with AB = AC then

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  7. In give figur l abs() m and M is the mid-point of a line segment AB .S...

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  8. The bisectors of angleB and angleC of an isosceles triangle with AB = ...

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  9. Bisectors of the angles B and C of an isosceles Delta ABC with AB=AC...

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  10. In following figure if AD if the bisector of angleABC, then prove that...

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  11. Find all the anlges of an equilateral triangle.

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  12. The image of the an object placed at a point A before a plane mirror ...

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  13. ABC is an isosceles triangle with AB=AC and D is a point on ABC BC suc...

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  14. P is a point on the bisector of angle ABC .If the line through P,para...

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  15. ABCD is a quadrilateral in which AB=BC and AD =CD ,Show that BD bisect...

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  16. ABC is a right triangle with AB = AC.If bisector of angle A meet BC a...

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  17. O is a point in the interior of a square ABCD such that Delta OAB is ...

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  18. ABC and DBC are two triangle on the same base BC such that A and D lie...

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  19. In Figure, a A D\ a n d\ B E are respectively altitudes of an isosc...

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  20. Prove that sum of any two sides of a triagle is greater than twice the...

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