A manufacturer involved ten children in colouring playing top (lattu) which is shaped like a cone surmounted by a hemisphere. The entire top is $$5\ cm$$ in height and the diameter of the top is $$3.5\ cm$$. Find the area they had to paint if $$50$$ playing tops were given to them. $$\left( \text{Take}\ \pi =\dfrac{22}{7}\right)$$
How is child labour an abuse for society?