Home
Class 9
MATHS
In Figure, A B C is an equilateral tria...

In Figure, ` A B C` is an equilateral triangle. Find `m\ /_B E C`

Promotional Banner

Topper's Solved these Questions

  • AREA OF PARALLELOGRAMS AND TRIANGLES

    RD SHARMA|Exercise All Questions|205 Videos

  • CONGRUENT TRIANGLE

    RD SHARMA|Exercise All Questions|291 Videos

Similar Questions

Explore conceptually related problems

In Fig. 19.60, A B C is an equilateral triangle inscribed in a circle of radius 4 cm with centre O . Find the area of the shaded region. (FIGURE)

In Figure, A B C is a right triangle right angled at A ,\ B C E D ,\ A C F G\ a n d\ A M N are square on the sides B C ,\ C A\ a n d\ A B respectively. Line segment A X\ _|_D E meets B C at Ydot Show that: a r\ (B Y X D)=2\ a r\ (\ M B C)

In Figure, A B C is a right triangle right angled at A ,\ B C E D ,\ A C F G\ a n d\ A M N are square on the sides B C ,\ C A\ a n d\ A B respectively. Line segment A X\ _|_D E meets B C at Ydot Show that: a r\ (C Y X E)=2a r(\ F C B)

In Figure, A B C is a right triangle right angled at A ,\ B C E D ,\ A C F G\ a n d\ A M N are square on the sides B C ,\ C A\ a n d\ A B respectively. Line segment A X\ _|_D E meets B C at Ydot Show that: \ F C B~=\ A C E

In Figure, A B C is a right triangle right angled at A ,\ B C E D ,\ A C F G\ a n d\ A M N are square on the sides B C ,\ C A\ a n d\ A B respectively. Line segment A X\ _|_D E meets B C at Ydot Show that: a r\ (B Y X D)=a r\ (A B M N)

In Fig.,delta ABC is an equilateral triangle with coordinates of B and C as B(1,0) and C(5,0) . Find the coordinates of vertex A

In Figure, A B C is an isosceles triangle in which A B=A CdotC P A B and A P is the bisector of exterior /_C A D of A B C . Prove that /_P A C=/_B C A and (ii) A B C P is a parallelogram.

In the adjoining figure, ABCD is a rhombus and ABE is an equilateral triangle. If angleBCD=70^(@), find (a)angleADE" "(b)angleBDE" "(c)angleBED

In Figure, A B C\ a n d\ B D E are two equilateral triangls such that D is the mid-point of B CdotA E intersects B C in Fdot Prove that: a r( B D E)=1/4a r\ (\ A B C)

In Figure, A B C\ a n d\ B D E are two equilateral triangls such that D is the mid-point of B CdotA E intersects B C in Fdot Prove that: a r\ ( B D E)=1/2a r\ ( B A E)

RD SHARMA-CIRCLE -All Questions
  1. In any triangle ABC, if the angle bisector of /Aand perpendicular bis...

    Text Solution

    |

  2. Let the vertex of an angle ABC be located outside a circle and let t...

    Text Solution

    |

  3. In Figure, A B C is an equilateral triangle. Find m\ /B E C

    Text Solution

    |

  4. In Figure, P Q R is an isosceles triangle with P Q=P R\ a n d\ m/P...

    Text Solution

    |

  5. In Figure, O is the centre of the circle. If /B O D=160^0, find the ...

    Text Solution

    |

  6. In Figure A B C D is a cyclic quadrilateral. If /B C D=100^0a n d\ /A ...

    Text Solution

    |

  7. If A B C D is a cyclic quadrilateral in which AD|\|BC . Prove that /...

    Text Solution

    |

  8. In Figure, O is the centre of the circle. Find /C B D

    Text Solution

    |

  9. A B\ a n d\ C D are diameters of a circle with centre Odot If /O B D...

    Text Solution

    |

  10. On a semi-circle with A B as diameter, a point C is taken, so th...

    Text Solution

    |

  11. In a cyclic quadrilateral A B C D, if AB |\| CD\ a n d\ /B=70^@, fin...

    Text Solution

    |

  12. In a cyclic quadrilateral A B C D , if /A=3 /C). Find /A

    Text Solution

    |

  13. In Figure, O is the centre of the circle and /D A B=50^0dot Calculat...

    Text Solution

    |

  14. In Figure, if /B A C=60^0\ a n d\ /B C A=20^0,\ find /A D C

    Text Solution

    |

  15. In Figure, if A B C is an equilateral triangle. Find /B D C\ a n d\ ...

    Text Solution

    |

  16. In Figure, O is the centre of the circle. If /C E A=30^0, find the v...

    Text Solution

    |

  17. In Figure, /B A D=78^0,\ /D C F=x^0a n d\ /D E F=y^0dot Find the val...

    Text Solution

    |

  18. In a cyclic quadrilateral A B C D , if /A-\ /C=60^0, prove that th...

    Text Solution

    |

  19. In Figure, A B C D is a cyclic quadrilateral. Find the value of x

    Text Solution

    |

  20. A B C D is a cyclic quadrilateral in which: B C A D ,\ /A D C=110^0...

    Text Solution

    |