Write a letter to your friend tell him/her how you gained admission in to the
university​

Explanation:

Dear friend,

I am writing to you today to explain to you my sure-fire method of getting into your university of choice. When you ask this question to the average person they'll say things like, "get good grades, be involved in your extra carricular, and do lots of volunteer work." This, to anyone who knows what they're talking about, is undeniably false. The way to gain admission to a university is to suck off the admissions director.

i used to know but i learned it a long time ago sorry

explanation:

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