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To draw polygons in Scratch, you must remember a few thumb rules. These are as follows:

                    You must know the number of sides of the shape. This is the value to be given in Repeat
                   block. For example, you give Repeat 3 to draw a triangle and 4 to draw a square.

                    Each time a Repeat block is used, you draw a line and turn at a corner.
                    You must know the degree of the angle at the corner. It is very easy to calculate this. Just
                   divide 360 by the number of sides of the shape. For example, to draw a triangle, the turn will
                   be 360/3 (sides of the triangle) = 120.

                 Look at these polygons that can be made using Repeat block.
                                     Polygon                               Command


                             Triangle                   Repeat 3 Move 100 Steps Turn 120 degrees

                             Square                     Repeat 4 Move 100 Steps Turn 90 degrees


                             Pentagon                   Repeat 5 Move 100 Steps Turn 72 degrees

                             Hexagon                    Repeat 6 Move 100 Steps Turn 60 degrees


                             Heptagon                   Repeat 7 Move 100 Steps Turn 51 degrees


                             Octagon                    Repeat 8 Move 100 Steps Turn 45 degrees

                             Nonagon                    Repeat 9 Move 100 Steps Turn 40 degrees


                             Decagon                    Repeat 10 Move 100 Steps Turn 36 degrees


                          Tech Funda



                       Use the Hide block to hide the sprite after drawing the shape.





                     DRAWING A SQUARE IN SCRATCH

                 Now you will learn how to draw a square in Scratch. The steps are given below:

                 Step 1  Click on Events blocks category         .

                 Step 2  Click and drag the   when     clicked   block to the script area.

                 Step 3  Click on Pen blocks category        .

                 Step 4  Click on      erase all  block and drag it to the script area and snap it to the script.

                 Step 5  Next click on Control blocks category        .




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