Question

Qual é o valor de x, sabendo que os segmentos são tangentes á circunferência?
(a) 7 cm (b) 4 cm (c) 11 cm (d) 3 cm

Answer 1

$\large\boxed{\begin{array}{l}\sf\overline{\sf PA}=\overline{\sf PB}\\\sf 3x-2=10\\\sf 3x=10+2\\\sf 3x=12\\\sf x=\dfrac{12}{3}\\\\\sf x=4~cm\\\huge\boxed{\boxed{\boxed{\boxed{\sf\red{\maltese}~\blue{alternativa~b}}}}}\end{array}}$