Resposta :
[tex]\large\boxed{\begin{array}{l}\underline{\sf C\acute alculo\,do\,ap\acute otema\,da\,base:}\\\rm m=\dfrac{4}{2}=2\,m\\\underline{\sf C\acute alculo\,do\,ap\acute otema\,da\,pir\hat amide\!:}\\\rm a_p^2=h^2+m^2\\\\\rm a_p^2= 3^2+2^2\\\\\rm a_p^2=9+4\\\\\rm a_p^2=13\\\\\rm a_p=\sqrt{13}\,m\longrightarrow resposta\end{array}}[/tex]