long time.
He was a mathematician who contributed to the fields of calculus and algebra. His theorem an + bn = cn called, "Fermat's Last Theorem" was a challenge for the mathematical world to prove for a long time.
It was nonviolent. Therefore, not much attention was brought to it in order to solve it.
Pierre De Fermat is famous for Fermat's Last Theorem, which states that an+bn=cn will never be true as long as n>2
Actually, the theorem has been used long ago before mathematician called Pythagoras came along. It was previously already applied in Indian society. The theorem only came to be known as "Pythagoras Theorem" because he (or his students) were the first ones to construct a proof for the theorem.
British mathematician Andrew Wiles published a proof of Fermat's Last Theorem in May of 1995, 358 years after the conjecture was first proposed. The proof itself is over 150 pages long and took him seven years to create. As you might imagine, it is not reproducible here, but it and a great many supporting articles are readily available online.
2000 years ago
of course you can
Using Pythagoras' theorem: 21.21320344 cm
Using Pythagoras' theorem it is 40 feet
Using Pythagoras' theorem each side will be 6.363961031 units in length.
you might be able to use tangent, sine, or cosine. you might be able to use the Pythagorean theorem, or you can used 30-60-90 triangle theorem or 45-45-90 triangle theorem
90