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In a Delta ABC O is orthocentre angle ...

In a `Delta ABC ` O is orthocentre `angle BOC = 130^(@)` find `angle `A ?

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The correct Answer is:
`50^(@)`
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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-GEOMETRY-QUESTIONS
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  10. In a Delta XYZ , O, T, C are orthocentre , incentre and circumcen...

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  11. D is a point on side BC of a Triangle ABC such that AD bot BC and E...

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  12. O is the Ortho centre of Delta ABC then A will be Orthocentre

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  13. Find (BO) / (OF)

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  14. (AG)/(GD)= 3/4 (BD)/(DC)= 4/7

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  15. ABC is a Delta . and (A0)/(OD) = 4/1 , (BD)/(DC) = 2/1 Find (...

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  20. In a Delta ABC median BE and CF intersect at O ratio of area of (OFE)...

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