Someone asap!
how did the united states with the war effort despite not initially being directly involved in world war ii?

in advance< 3

The U.S. was secretly supplying Britain with Oil, Tanks, Planes, and etc. to help aid them in the war effort against Nazi Germany.

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°

the real answer is b