#### Information Processing Book Back Questions

7th Standard EM

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Maths

Time : 00:45:00 Hrs
Total Marks : 30
2 x 1 = 2
1. A tetromino is a shape obtained by …………………. squares together

()

4

2. Draw a tetromino which passes symmetry ...................

()

3. 4 x 1 = 4
4. (1)

5. (2)

6. (3)

7. (4)

6 x 2 = 12
8. Complete the table

9. Shade the figure completely, by using five Tetromino shapes only once.

10. Using the given Tetromino shaded in two different ways
, fill the grid in such a way that, no two adjacent boxes have the same colour.

11. Using the given tetrominoes with numbers, complete the 4 x 4 magic square

12. Find the shortest route to Vivekanandar Memorial Hall from the Mandapam using the given map.

13. Match the tetrominoes of same type

14. 4 x 3 = 12
15. Find the tetromino shapes found in the showcase given in Fig below. Form the same shape in the geoboard using rubberbands

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

1. How many tetrominoes are there in a tile ?
2. If the cost of a square tile is Rs. 52 then what will be the cost of the tiles that Raghavan buys for the front elevation?

17. 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 Find the shortest route?

18. A telephone exchange worker wants to give the telephone connection to Amutha's house. Shows all the possibilities of cable connections. Find the route which requires minimum cable?