Mathematics
In the given figure, O is the centre of the circle such that ∠AOC = 130°, then ∠ABC is equal to :
65°
90°
105°
115°
Related Questions
An equilateral triangle ABC is inscribed in a circle with centre O. The measure of ∠BOC is :
120°
60°
90°
30°
If two diameters of a circle intersect each other at right angles, then the quadrilateral formed by joining their end points is a :
rhombus
square
rectangle
parallelogram
A chord of a circle is equal to its radius. The angle subtended by this chord at the minor arc of the circle is :
60°
90°
120°
150°
ABCD is a cyclic quadrilateral such that ∠ADB = 45° and ∠DCA = 55°, then ∠DAB is equal to :
55°
45°
100°
80°