Answer:
9.85
Step-by-step explanation:
you can use the Pythagoras theorem
[tex]a^2+b^2=c^2[/tex]
with c the hypotenuse
[tex]9^2+4^2=c^2\\\\81+16=c^2\\\\97=c^2\\\\c=\sqrt{97}[/tex]
which is aprox
ups sorry :(
Remeber that
[tex]A^{2}+ B^{2} =C^{2}[/tex]
so
[tex]4^{2}+9^{2}=C^{2}[/tex]
16+81 = [tex]C^{2}[/tex]
97 = [tex]C^{2}[/tex]
Take the square root of both sides
[tex]\sqrt{97} = \sqrt{C^{2} }[/tex]
9.85 = C
