If O is the center of the circle in the figure. Find, in degrees Angle QPR + Angle ORQ = ??

If a piece of wire 40 cm long is bent into a arc of a circle subtending an angle of 60 degree at the center, then what is the radius of the circle?

The given figure shows a circle, centred at O, enclosed in a square. Find the total area of shaded parts?

In the figure AC is a common tangent of two touching circles. If B is touching point of both circles then find angle B.

A circle has a radius of 12 units and its center is at one vertex of a square. The square has a side of 12 units. Find the area of the shaded region?