A uniform wire of length 20cm is bent into shape V of 60 degree. What is distance of its center of mass from vertex A?

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?

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?