Answer:
4.47 or 2√5
Step-by-step explanation:
Cutting the sandwich in half will create 2 right triangles. The longest side, the diagonal, called the hypotenuse is found using the Pythagorean Theorem.
The sides of the right triangle will be 2, 4, and c.
[tex]a^2+b^2=c^2\\2^2 + 4^2 = c^2\\4 + 16 = c^2\\20 = c^2\\\sqrt{20} = c\\2\sqrt{5} = c\\4.47 = c[/tex]
