Step 1: Draw the path on x,y plane

Step 2: Use Pythagorean theorem to find the distance between Home and Bakery

$$ a^2+b^2=c^2 $$

$$ 0.3^2+0.4^2=c^2 $$

$$ \therefore c=\sqrt{0.3^2+0.4^2}=0.5 $$