The co-ordinates of the centroid of a triangle ABC are (-1,-2) what are the co-ordinates of vertex C, if co-ordinates of A and B are (6,-4) and (-2,2) respectively?
The pie chart shows the contribution of all the sectors towards the GDP of the economy of a certain country. Study the diagram and answer the following questions.
The measure of the central angle of the sector representing D is ________ degrees.