Answer:
50
Step-by-step explanation:
let a= 30
b= 40
c= ?
According to Pythagoras theorem
[tex]c^{2}[/tex]= [tex]a^{2}[/tex] + [tex]b^{2}[/tex]
[tex]c^{2}[/tex]= [tex]30^{2}[/tex] + [tex]40^{2}[/tex]
[tex]c^{2}[/tex]= 900 + 1600
[tex]c^{2}[/tex]= 2500
c=[tex]\sqrt{2500}[/tex]
c=50
