English presence in china hastened the fall of the

mughal empire
gupta empire
persian empire
none of the above

None of the above

Explanation:

Basically all those empires didn't operate in China.

Mughal and gupta operated in India while Persian empire operated in Iran.

So the English to Chinese did not affect any of those empire because they are not Chinese.

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