Answer:

Step-by-step explanation:
we are given

Let's assume angle as theta

so, we get

now, we can use unit circle and find theta
and we get

So, solution is

First find the length of the diagonal of a square of side 4 inches:
d^2 = 4^2 + 4^2 = 2*4^2 = 32. Then the diagonal of the cube has length
sqrt( 32 + 4^2) = sqrt(32+16) = sqrt(48) = 4sqrt(3).
Ted is 6 years old.
4x6=24+6=30