Mathematics
In the following figure, AD is the diameter of the circle with centre O. Chords AB, BC and CD are equal. If ∠DEF = 110°, calculate :
(i) ∠AEF, (ii) ∠FAB.
Related Questions
In a cyclic-trapezium, the non-parallel sides are equal and the diagonals are also equal. Prove it.
If two sides of a cyclic-quadrilateral are parallel; prove that :
(i) its other two sides are equal.
(ii) its diagonals are equal.
In the given figure, O is the center of the circle, chords AB, CD and EF are equal whereas chords BC, DE and FA are separately equal. The angle AOC is equal to :
80°
100°
90°
120°
The given figure show a circle with centre O. Also, PQ = QR = RS and ∠PTS = 75°.
Calculate:
(i) ∠POS,
(ii) ∠QOR,
(iii) ∠PQR.
