A straight length of wire is 20 cm long. It is bent at right angles to form the two shorter sides of a right angled traignle. If hte triangle's area is 30cm^2, find:

i. the length of the hypotenuse

ii. the triangle's perimeter

(one of the problems I have is that I can't really visualize the triange. If there are two right angles the its not a triangle! O_O)