World War 1

Name one human, one economic, and one emotional cost of the war.

human:More than 9 million soldiers and an estimated 12 million civilians died in the four-year-long conflict, which also left 21 million military men wounded.

Economic : Farms were destroyed, and factories ruined. One estimate said the war had caused $338 billion in damage. Emotional : People felt all the suffering did not seem to have a purpose.

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°

for your : )