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An exterior angle of a triangle is equ...

An exterior angle of a triangle is equal to `100^0` and two interior opposite angles are equal. Each of these angles is equal to (a)`75^0` (b) `80^0` (c) `40^0` (d) `50^0`

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RD SHARMA ENGLISH-TRIANGLE AND ITS ANGLES-All Questions
  1. If all the three angles of a triangle are equal, then each one of th...

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  2. If two acute angles of a right triangle are equal, then each acute i...

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  3. An exterior angle of a triangle is equal to 100^0 and two interior ...

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  4. If one angle of a triangle is equal to the sum of the other two angl...

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  5. Side B C of a triangle A B C has been produced to a point D such tha...

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  6. In A B C ,\ /B=/C and ray A X bisects the exterior angle /D A CdotI...

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  7. In a triangle, an exterior angle at a vertex is 95^0 and its one of ...

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  8. If the sides of a triangle are produced in order, then the sum of th...

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  9. In △ A B C , if /A=100^0,\ A D bisects /A\ a n d\ /A D\ |B C . Then, ...

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  10. An exterior angle of a triangle is 108^0 and its interior opposite...

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  11. In a A B C , if /A=60^0,\ /B=80^0 and the bisectors of /B\ a n d\ /C ...

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  12. If the bisectors of the acute angles of a right triangle meet at O ,...

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  13. Line segments A B\ a n d\ C D intersect at O such that A C = D Bdot If...

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  14. The bisects of exterior angles at B and C of triangle A B C meet at ...

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  15. In a A B C ,\ /A=50^0a n d\ B C is produced to a point Ddot If the bi...

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  16. The side B C of A B C is produced to a point Ddot The bisector of /A ...

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  17. In Figure, if E C || A B ,\ /E C D=70^0A N D\ /B D O=20^0 , then /O B...

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  18. In Figure, x+y= 270 (b) 230 (c) 210 (d) 190^0

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  19. If the measures of angles of a triangle are in the ratio of 3:4:5, w...

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  20. In Figure, if A B|B C , then x= 18 (b) 22 (c) 25 (d) 32

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