Angle in a Semicircle
In the following figure if O is the centre of the circle, AC = 3 cm and BC = 4 cm, then the length of the diameter of the circle is
If A and B are two fixed points on the circumference of the circle such that line joining A and B passes through the centre of that circle, then the locus of the point P such that the ∠APB=90∘ is
AB is the diameter of the circle with centre O. P is a point on the circle such that PA = 2PB. If AB = d units, find BP
What is the angle subtended by the diameter on the circumference of the circle?
Angle in a semicircle is
always an obtuse angle
either an acute angle or a right angle, but never an obtuse angle
always an acute angle
always a right angle
In the given figure, AB is the diameter of the circle. Find the value of x.
In the following figure if O is the centre of the circle, AC = 5 cm and BC = 12 cm, then the radius of the circle is
In the following figure, if O is the centre of the circle then ∠DOE equals
In the given figure if O is the centre of the circle, then ∠CAB equals
In triangle ABC, D is a point in AB such that AC = CD = DB. If ∠B=28∘, then the measure of angle ACD is