Respuesta :

Answer:

you know 2 sides are the same on an a silly triangle.. I mean isosceles.. so the hypotenuse will be longer but the other two sides are the same

use [tex]C^{2}[/tex] = [tex]A^{2}[/tex] + [tex]B^{2}[/tex]  ( Pythagoras theorem )

Step-by-step explanation:

[tex]4^{2}[/tex] = [tex]A^{2}[/tex] +[tex]A^{2}[/tex]  ( b/c the side are the same length the can both be called A )

16 = 2[tex]A^{2}[/tex]

8 = [tex]A^{2}[/tex]

[tex]\sqrt{8}[/tex] = A

not a whole number but.. it's still a good answer square root of 8 is about 2.8284 on my calculator