Page 54 - Code & Click - 4

DRAWING POLYGONS
The Pen blocks can be used to draw circles and polygons. Examples of polygons are
triangles, rectangles, pentagons, hexagons, etc.
To draw a polygon, the following points should be kept in mind:
(a) The number of sides of the polygon must be known.
(b) You need to turn the sprite by a specific angle to draw a polygon. The formula to
calculate the angle of turn is given by
360°

number of sides in the polygon
The table given below gives the value for Repeat block and the angle of turn needed to
draw various polygons.

Name of Polygon Number of Sides Value for Repeat Block Angle of Turn

Triangle 3 3 120
Square 4 4 90

Pentagon 5 5 72
Hexagon 6 6 60

Octagon 8 8 45
Experiential Learning
Lab Activity 4

Let us draw a hexagon and stamp the Cat sprite at each corner of the
hexagon.
1. Open a new project.

2. Create the stack of blocks as shown in the given image.
3. Click the Go button to run the project.
The Cat sprite draws a hexagon in orange colour and stamps its
image at each corner of the hexagon. Some sample images are
given for your reference.

DRAWING A CIRCLE
A circle is a special figure. You can think of a circle as a polygon in which you make a
turn of 1 degree after every step you move. Thus, to draw a circle, you need to use the
Repeat block 360 times, and the angle of turn must be 1.

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