All of the following represent innovations in land use in the middle ages except

a-the shared property of monastic communities
b-the open fields of manorial villages
c-the three-field system
d-the ownership by individuals of small farms

Correct

D. the ownership by individuals of small farms.

The monastic communities have monastic centers in several places like Ethiopia, Georgia, Greece, Republic of Macedonia and Russia. Although the monks lived in huts or individual rooms during the Middle Ages, the shared spaces served as an innovation in the use of land. The open field system was the agricultural system that prevailed in much of Europe during the Middle Ages and innovated the use of acres of land. The system of three fields in medieval Europe was also implemented, which innovated the use of the land by being able to cultivate different types of crops in the same area in sequential seasons.

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°