Question 1191942
Draw this out: one leg of the triangle to the T from the Turtle's pen is 1.2 miles. 
The second leg of this right triangle is 1.6 miles.
The hypotenuse is the distance from the pen, and this is a 12-16-20 (3-4-5) right triangle.
if 12 is 1.2 miles and 16 is 1.6 miles, then 20 is 2.0 miles, and that is the answer