made some code for the letter a

typeface.py

@@ -12,9 +12,13 @@
 from turtle import *
 from math import sqrt
 
-def draw_letter_a(unit):
-    pass
-
+def draw_letter_a(size):
+    penup()
+    forward(size)
+    pendown()
+    forward(size*2)
+    left(90)
+    forward(size*4)
 def draw_letter_b(unit):
     pass