The figure  has_____ lines of symmetry.

The perimeter of the figure is 

A wire in the shape of a square of area 36 cm square is reshaped into rectangle whose breadth is 4 cm. The area of the rectangle formed is $a c{m}^2$. Find the value of $a.$

The following bar chart shows the total number of tickets sold for a rock concert. Study the bar chart and answer the question 

What is the total number of tickets sold?                        

The following bar chart shows the total number of tickets sold for a rock concert. Study the bar chart and answer the question.

What is the ratio of the amount of money collected from the sale of $₹20$ tickets to that of$₹50$ tickets? Express the answer in its lowest form.

The following bar chart shows the total number of tickets sold for a rock concert. Study the bar chart and answer the question 

The amount of money earned from which ticket was highest?

Using compasses, construct an angle of 120. Also construct its line of symmetry. What is the special name given to this line of symmetry?