Question

Find out the length of the boundary of these shapes. (Hint: You can use a thread)

Now count the squares to find out : 

1. How many squares are there in each shape?
2. Which shape covers the least number of squares?
3. Which shape covers the most number of squares?

Answer 1

1. The number of complete square in figure - A = 1
   The number of complete square in figure - B = 2
   The number of complete square in figure - C = 3
   The number of complete square in figure - D = 2
2. Figure A covers the least number of square which is 1.

3.  The figure C covers the most number of square which is 3.