Home
Class 14
MATHS
O is circumcentre of DeltaABC if angleBA...

O is circumcentre of `DeltaABC` if `angleBAC=85^(@) angleBCA=80^(@)` find `angleOAC`.

A

`60^(@)`

B

`75^(@)`

C

`80^(@)`

D

`30^(@)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • DATA INTERPRETATION

    MOTHERS|Exercise MULTIPLE CHOICE QUESTIONS|372 Videos

  • LCM & HCF

    MOTHERS|Exercise MULTIPLE CHOICE QUESTION|200 Videos

Similar Questions

Explore conceptually related problems

O is orthocentre of DeltaABC if angleBOC=120^(@) find angleBAC

O is the circumcentre of a triangle ABC. If angleBAC=85^(@) and angleBCA=75^(@) then what is the value of angleOAC ?

In given diagram Q is the circumcenter of DeltaABC and O is the circumcenter of DeltaBPC . If angleBAC=65^(@) then find the angleOPC

If S is the circumcentre of DeltaABC and angleA=50^(@) , then the value of angleBCS is

In a triangle ABC, O is the centre of incircle PQR, angleBAC=65^@, angleBCA=75^@ , find angleROQ.

O is the circumcentre of the triangle ABC and angle BAC = 85^@ , angle BCA = 75^@ , then the value of angle OAC is

In the adjoining figure, P is the circumcentre of the DeltaABC . mangle APC=118^@ and mangle PBC=45^@ , then find: (i) m(arc BXC) (ii) m(arc BCA)

In DeltaABC, AC=BC and angleBAC=50^(@). Find angleBCA .

MOTHERS-GEOMETRY -MULTIPLE CHOICE QUESTIONS
  1. In DeltaABC angle bisector of angleA, angleB angleC meets cuts circumc...

    Text Solution

    |

  2. O is orthocentre of DeltaABC if angleBOC=120^(@) find angleBAC

    Text Solution

    |

  3. O is circumcentre of DeltaABC if angleBAC=85^(@) angleBCA=80^(@) find ...

    Text Solution

    |

  4. 2 sides of triangle are of 4 cm and 10 cm. If 3rd side is length of 'a...

    Text Solution

    |

  5. In DeltaABC, AD is median and AD = 1//2 BC. If angleBAD=30^(@) then fi...

    Text Solution

    |

  6. If G is centre of DeltaABC, AG = BC, Find angleBFC.

    Text Solution

    |

  7. Perimeter of two similar triangles DeltaABC and DeltaPQR are 36 cm and...

    Text Solution

    |

  8. In a obtuse angled DeltaABC, angleA is obtuse and O is orthocentre. If...

    Text Solution

    |

  9. If BE and CF are 2 median of a DeltaABC and G is there intersecting po...

    Text Solution

    |

  10. If I is incentre of DeltaABC, angleA=60^(@) find angleBIC.

    Text Solution

    |

  11. In DeltaABC exterior angle bisectors of angleB and angleC meets at poi...

    Text Solution

    |

  12. ABC is a triangle median CD and BE intersects at point O then find the...

    Text Solution

    |

  13. In DeltaABC, angle bisector of angleA intersect BC at D and intersects...

    Text Solution

    |

  14. In a triangle ABC, angle bisector of angle BAC cut the side BC at D a...

    Text Solution

    |

  15. In a DeltaABC angle bisector of angle C intersect AB at point D where ...

    Text Solution

    |

  16. In DeltaABC, AB = AC, BC is extended to D such that AC = CD if angleBA...

    Text Solution

    |

  17. In DeltaPQR side QR is extended to S and angle bisector of anglePQR an...

    Text Solution

    |

  18. AB and CD are two chords of a circle where AB = 10 cm, CD = 24 cm and ...

    Text Solution

    |

  19. There is a circle of radius 5 cm. There are two chords AB and AC OF e...

    Text Solution

    |

  20. The radii of two co-centric circles are 13 cm and 8 cm respectively. A...

    Text Solution

    |