Fill in $8\times 5$ rectangle completely, using all the five tetrominoes twice.

Observe the picture and answer the following.

Find all the possible routes from $A$ to $D$.

Observe the picture and answer the following.

Find the shortest distance between $E$ and $C$.

Observe the picture and answer the following.

Find all the possible routes between $B$ and $F$ with distance. Mention the shortest route.

Find the tetromine shapes found in the showcase given figure below, From the same shape in the geoboard using rubber bands.

Raghavan wants to change the front elevation of his house using tiles made up of tetromino shapes 

How many tetrominoes are there in a tile 

If the cost of a square tile $52$ then what will be the cost of the tiles that Raghavan buys for the front elevation.

Madhan has to go to Karur from Coimbatore for an official visit, On his onward journey he goes via Vellakoil to reach Karur. while returning to coimbatore he travels via Erode Both the routes travelled by him are given in the fig $6.26$ Find the shortest route$?$

A Telephone exchange worker  wants to give the telephone connection to Amutha's house, Below figure shows all the possibilities of cable connections. Find the route which requires minimum cable$?$