Respuesta :

(Btw that’s not 50 points, imma solve this for you because you’re desperate)

Using the Pythagorean theorem:
c^2 = a^2 + b^2
c^2 = 4^2 + 7^2
c^2 = 16 + 49
c^2 = 65
c = 8.1
Yaah what the guy said above me :^