Answer:
20.1246118 or 20.12
Step-by-step explanation:
First draw the box with the diagonal, as you can see it is split into 2 equal right triangles. Now use the pythagorean theorem (a^2+b^2=c^2) to find the length of the diagonal
B
I just know the greatest common factor is 2ab
But i don’t know if it is foil method but I still don’t know how to put it in that format
Answer: A
