An effect of the battle of antietam was that:
o
a. the north sent troops to fight britain and france.
o
b. the south lost a chance to gain support from britain and france.
o
c. the north lost support from britain and france.
o
d. the south gained recognition as an independent nation from
britain and france.
submit

b. the south lost a chance to gain support from Britain and france

3

Explanation:

You can make that into a triangle and find the hypotenuse by using the pythagorean theorem a^2 + b^2 = c^2

Your hypotenuse is your vector that you're looking for

Heres the work:

3^2 + 3^2= r^2

r=3

Please let me know if this helped, and rank it the brainliest if possible!