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In DeltaABC, if AB=AC and BD=DC (see fig...

In `DeltaABC`, if `AB=AC and BD=DC` (see figure), then `angleADC=`

A

`60^(@)`

B

`45^(@)`

C

`120^(@)`

D

`90^(@)`

Text Solution

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The correct Answer is:
D
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MTG IIT JEE FOUNDATION-TRIANGLES-EXERCISE (Multiple Choice Questions) (LEVEL-1 )
  1. For the given triangles, write the correspondence, if they are congrue...

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  2. In DeltaABC, if angleB lt angleA then

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  3. In DeltaABC, if AB=AC and BD=DC (see figure), then angleADC=

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  4. Which of the following is a correct statement?

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  5. D is a point on the side BC of a DeltaABC such that AD bisects angle B...

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  6. In figure, angleB lt angleA and angle C lt angleD then

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  7. Which of the following is a correct statement?

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  8. In Delta ABC and Delta PQR , If AB=AC, angleC=angleP " and " angleB=a...

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  9. In A B C , side A B is produced to D so that B D=B Cdot If /B=60^0\ a...

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  10. In the given figure, AB=AC, angleA=42^(@) and angleACD=14^(@), angle B...

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  11. In the given figure, find the measure of angleACD.

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  12. If S is any point on the side QR of a DeltaPQR, then

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  13. In the given figure, AB = BC, AD = CD. Then, which of the following is...

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  14. A B C is a triangle in which /B =2 /CdotD is a point on B C s...

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  15. Which of the following pairs of triangles is congruent?

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  16. In a quadrilateral ABCD, AC bisects angleC and BC = CD, then which of ...

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  17. In an isosceles triangle DeltaABC, if angle B=70^(@) find angleA

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  18. In the given figure, ABCD and BPQ are straight lines. If BP = BC and D...

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  19. The vertical angle of an isosceles triangle is 100^(@). Find its base ...

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  20. ABCD is a square and ABE is an equilateral triangle outside the square...

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