Respuesta :

ngeagle
This question is all about Pythagorean's Theorem, which is: a² + b² = c², where c is always the length of the hypotenuse. Using this, we can solve this problem quickly by substituting in the numerical values for the variables.

9² + 40² = c²
81 + 1600 = c²
1681 =  c²
41 = c, or hypotenuse