What is the length of the hypotenuse of the triangle when x=15?

Answer:
114.24°
Step-by-step explanation:
7(15)+6= 105
3(15)= 45, now we plug it in the formula, [tex]a^{2}+b^{2}=c^{2}[/tex]
[tex]105^{2}+45^{2} = 13050[/tex]
so now we square root it
[tex]\sqrt{13050}[/tex]= 114.24
Step-by-step explanation:
111^2 + 45^2 = 14346
then take the square root of 14346
which is 119.77