How did the Berlin Conference affect 19th-century European imperialism in Africa?​

Explanation:

In conclusion, The Berlin conference was significant due to the major role it had in the colonization of Africa. It gave European nations the opportunity to take control of Africa and disregard the Natives that were there before them and just do what they wanted to do.

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°