Respuesta :

by Pythagoras theorem,

hypotenuse² = base² + adjacent²

x² = 7² + 11²

x² = 49 + 121

x² = 170

x = √170

x = 13.03

x = 13(round fig)

hope it helps...!!!

A^2 + B^2 = C^2

7^2 + 11^2 = C^2

49 + 121 = C^2

170 = C^2

Root 170 = line bc