Answer:
Step-by-step explanation:
We can first solve for the face diagonal. That is . Notice this will form a right triangle with the vertical side. We get that the face diagonal = . Now, we can use Pythagorean theorem again to get the straw length:
where s = the straw length.
We can solve that s =
bearing in mind that an explicit form is simply the sequence written as a function of some variables, so we simply simplify and add like-terms.
C
2+2
2(1+1)
2(2)
2×2
4
Thus, 4 is the answer