How to draw a semicircle in Python turtle only

Question

How to draw a semi circle(half circle) in python turtle only?

I can only use Python turtle. I have try looking for resouces but no luck on finding ones that only use Python turtle.

Answer 1

See Python turtle reference on circle. For example, for a semi-circle with radius 100 it would be:

import turtle
turtle.circle(100,180)

Answer 2

Try the following:

import turtle
t = turtle.Pen()
t.left(90)
for x in range(180):
    t.forward(1)
    t.right(1)
t.right(90)
t.forward(115)

Answer 3

you can also do it just using circle. turtle.circle(radius, extent,steps) eg.

turtle.circle(50,180) # - step is optional