Dickinson's use of figurative language in this poem expresses the idea that ??

He visited, still flitting; Then, like a timid man, Again he tapped—'t was flurriedly— Dickinson's use of figurative language in this poem expresses the idea that the speaker is worried about the wind's damaging power. ... the speaker enjoys this unexpected visit from the wind.

the answer is

r ≈5.641

plug in the area of 100 yards into the equation

100=

divide each side by pi

≈ 31.8309=

take the square root of each side to find r

=r

r ≈5.641