Help please

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

Which statements are true about additional information for proving that the triangles are congruent check all that apply