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In A B C , if /B=60^0,\ /C=80^0 and the...

In ` A B C ,` if `/_B=60^0,\ /_C=80^0` and the bisectors of angles `/_A B C\ a n d\ /_A C B` meet at a point `O ,` then find the measure of `/_B O C.`

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RD SHARMA ENGLISH-TRIANGLE AND ITS ANGLES-All Questions
  1. Define a triangle.

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  2. Write the sum of the angles of an obtuse triangle.

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  3. In A B C , if /B=60^0,\ /C=80^0 and the bisectors of angles /A B C\ a...

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  4. If the angle of a triangle are in the ratio 2:1:3, then find the m...

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  5. If the angles A ,\ B\ a n d\ C of a /\ A B C satisfy the relation B-A=...

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  6. In A B C , if bisectors of /A B C\ a n d\ /A C B intersect at O at an...

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  7. State exterior angle theorem

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  8. If the side B C of A B C is produced on both sides, then write the ...

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  9. In a triangle A B C , if A B=A C\ a n d\ A B is produced to D such tha...

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  10. The sum of two angles of a triangle is equal to its third angle. De...

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  11. In Figure, if A B || C D ,\ E F || B C ,\ /B A C=65^@ and /D H F=35^@,...

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  12. In Figure, if A B || D F and B D || F G such that /F G H=120^@ and /B=...

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  13. In Figure, side B C\ of A B C is produced to point D such that bisec...

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  14. If all the three angles of a triangle are equal, then each one of th...

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

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

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

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

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

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

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