How did ming china view global trade during 15th to 18th century

The Chinese people had considered the global trade was a threat to their culture, and their tradition, because most of the Chinese people had been converting into different religions, like Christianity.

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