Respuesta :

Using the Pythagorean theorem

C = sqrt( 9^2 + 40^2)

C = sqrr(81 + 1600)

C = sqrt(1681)

C = 41 cm

Answer:

41 cm

Step-by-step explanation:

c = a^2 + b^2 = 9^2 + 40^2 = 41