Пять способов решить планиметрию | ОГЭ. Математика. Задание 26 | Борис Трушин !

Whole-channel inclusion: Борис Трушин is an honest teaching channel (title sample + 3 transcripts read: The transcripts show structured, step-by-step worked math problem solutions typical of exam prep tutoring, consistent with genuine teaching content.); this title passed a strict title check (sonnet) after a labelling pass.

A 40-minute video from Борис Трушин: “Пять способов решить планиметрию | ОГЭ. Математика. Задание 26 | Борис Трушин !”.

Video by Борис Трушин, played through YouTube's embedded player.