Don't try to solve every exercise. The "Poliedro Method" usually involves doing the "Exercícios de Classe" (Classroom Exercises) first, then selecting specific levels from "Exercícios de Casa" (Homework) based on your target exam. Tablet vs. Print:
“I can’t find it,” she whispered. “The Polyhedron Geometry apostila . The 2019 edition. I have the simulation tomorrow. Everyone said the PDF is online, but the link is broken.”
Usar o PDF apenas como leitura passiva é ineficaz. Se você tiver um tablet (iPad ou Samsung Tab) com caneta (stylus), importe o PDF para aplicativos como GoodNotes, Notability ou OneNote. Sublinhe, faça anotações laterais e resolva os exercícios direto na tela.