Respuesta :

Moonnose
c^2=a^2+b^2
c^2=12^2+16^2
c^2=144+256
c^2=400
c= sqrt(400)
c=20
Jael323
The answer is 20, we solved this by using the Pythagorean theorem. 

12²+16²=c² 
144+256 = 400 
√400 = 20 
20 is the answer. 

I hope this helps!