मराठी

Some Important Results on Circles

Advertisements

Topics

CISCE: Class 10

Key Points: Some Important Results on Circles

  • Intersecting Circles (Collinearity):
    If two circles with centres O and O′ intersect at two points and diameters are drawn through these points, then the given points lie on a straight line.

  • Cyclic Parallelogram:
    Every parallelogram inscribed in a circle is a rectangle.

  • Isosceles Trapezium:
    An isosceles trapezium is always a cyclic quadrilateral.

  • Cyclic Trapezium Properties:
    A cyclic trapezium is isosceles, and its diagonals are equal.

  • Regular Polygon:
    Any four vertices of a regular polygon lie on a circle.

  • Chords Bisecting Each Other:
    If two chords of a circle bisect each other, then both the chords are diameters of the circle.

  • Angle Bisectors of a Cyclic Quadrilateral:
    The quadrilateral formed by the angle bisectors of a cyclic quadrilateral is also cyclic.

  • Mid-point of Hypotenuse:
    The mid-point of the hypotenuse of a right-angled triangle is equidistant from all three vertices of the triangle.

  • Equal Chords and Angles at the Centre:
    In a circle, equal chords subtend equal angles at the centre.

  • Converse of Equal Chords Theorem:
    In a circle, chords which subtend equal angles at the centre are equal in length.

Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×