Explain why Cortés was so impressed when he arrived in Tenochtitlan (capital of the Aztec Empire).

When Cortes arrived in 1519, the enormity of the trading market and the smoothness of it's running both surprised and impressed him.

Explanation:

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.