What areas would the Mayans need to be skilled in to complete the Kukulcán pyramid?

It was a blend of architectural skill combined with astronomical knowledge.

Explanation:

The endeavor itself was so precise that the pyramid reflected the architectural skill and precise knowledge of astronomical phenomena. The Kukulkan Temple during the autumn and spring equinox created a shadow that in the northern part of the pyramid looked like a massive snake descending the pyramid. This ingenious detail that happened twice a year is proof of the Mayan knowledge of astrology and his incredible architectural abilities. Some scientists believe that the pyramid refers to the Mayan calendar.

would not cooperate with each other voluntarily.

yes based on alexanders actions he deserved the title of "the great". his empire covered about 3,000 miles and he was able to establish the empire over a 13 year period of time. he was able to conquer many different places. he also defeated the persians. he conquered egypt and developed a city and named it after himself.