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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 in 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 command 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 in 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 command.

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

Drawing a Square in Scratch

To draw a square in Scratch, follow the given steps:

Step 1 Click on Events blocks category .

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

Step 3 Then click on Looks blocks category .

Step 4 Click and drag the block to the script area and snap it below the hat

block.

Step 5 Click on Pen blocks category .

Step 6 Click and drag the block to the script area and snap it to the script.

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