Question

Calcule o valor do segmento PA tangente à circunferência​

Answer 1

$\large\boxed{\begin{array}{l}\rm 5x-7=2x+20\\\rm 5x-2x=20+7\\\rm 3x=27\\\rm x=\dfrac{27}{3}\\\\\rm x=9\\\rm\overline{\rm PA}=5x-7\\\rm\overline{\rm PA}=5\cdot9-7\\\rm\overline{\rm PA}=45-7\\\rm\overline{\rm PA}=38\\\huge\boxed{\boxed{\boxed{\boxed{\rm\dagger\red{\maltese}~\blue{alternativa~A}}}}}\end{array}}$