This is just one of many possible solutions:
when green flag clicked
clear
go to x: (0) y: (0)
pen down
repeat (4)
move (100) steps
turn cw (90) degrees
wait (1) secs
end
pen up
This is just one of many possible solutions:
when green flag clicked
clear
go to x: (0) y: (0)
pen down
repeat (4)
move (100) steps
turn cw (90) degrees
wait (1) secs
end
pen up
Extra challenge #1: Write a program that takes the length of a side of a square as the input, draws the square with the given side and displays its perimeter as the output.