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A B C is a triangle in which /A=72^0 , t...

`A B C` is a triangle in which `/_A=72^0` , the internal bisectors of angles `B` and `C` meet in `O` . Find the magnitude of `/_B O Cdot`

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To find the magnitude of angle \( BOC \) in triangle \( ABC \) where \( \angle A = 72^\circ \) and the internal bisectors of angles \( B \) and \( C \) meet at point \( O \), we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Triangle Angles**: In triangle \( ABC \), the sum of the internal angles is always \( 180^\circ \). Therefore, we can write: \[ \angle A + \angle B + \angle C = 180^\circ ...
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RD SHARMA-CONGRUENT TRIANGLE -All Questions
  1. In Figure A B D C , if x=(4y)/3 and y=(3z)/8, find /B C D ,/A B C and...

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  2. A B is a line segment and line l is its perpendicular bisector. If a...

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  3. A B C is a triangle in which /A=72^0 , the internal bisectors of angle...

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  4. AB is a line-segment. P and Q are points on opposite sides of AB suc...

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  5. If one angle of a triangle is equal to the sum of the other two, sho...

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  6. Suppose line segments A B and C D interest at O in such a way that A O...

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  7. Two angles of a triangle are equal and the third angle is greater th...

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  8. If D is the mid-point of the hypotenuse A C of a right triangle A B C ...

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  9. In triangle A B C ,/B=45^@,/C=55^@ and bisector of /A meets B C at a p...

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  10. A B is a line segment, A X and B Y are two equal line segments drawn o...

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  11. In Figure, if A B D E ,/B A C=35^0 and /C D E=53^0 , find /D C Edot

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  12. l and m are two parallel lines intersected by another pair of parall...

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  13. (Exterior Angle Theorem): If a side of a triangle is produced, the ...

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  14. Two triangles are congruent if two angles and the included side of o...

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  15. A ,B ,C , are three angles of a triangle. If A-B=15^@,B-C=30^@, find /...

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  16. In Figure, diagonal A C of a quadrilateral A B C D bisects the angle...

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  17. In a triangle A B C ,/A B C=/A C B and the bisectors of /A B C and /A ...

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  18. In Figure, /B C D=/A D C and /A C B=/B D Adot Prove that A D=B C and /...

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  19. If each angle of a triangle is less than the sum of the other two, s...

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  20. In two right triangles, one side and an acute angle of one triangle ...

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